Alerts

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA — Mon, 27 Jul 26 12:00:00 +0000

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2025-68686 Fortinet FortiOS Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
CVE-2026-16812 Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability

These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.

Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied.

While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV Catalog vulnerabilities. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

Aware of an exploited vulnerability not currently listed in the KEV Catalog? Submit it for potential addition through CISA’s KEV Nomination Form. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance.

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA — Wed, 22 Jul 26 12:00:00 +0000

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-16232 Check Point SmartConsole Improper Authentication Vulnerability
CVE-2026-50522 Microsoft SharePoint Deserialization of Untrusted Data Vulnerability

These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.

CISA Adds Four Known Exploited Vulnerabilities to Catalog

CISA — Tue, 21 Jul 26 12:00:00 +0000

CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2021-27137 DD-WRT Stack-Based Buffer Overflow Vulnerability
CVE-2026-0770 Langflow Inclusion of Functionality from Untrusted Control Sphere Vulnerability
CVE-2026-63030 WordPress Core Interpretation Conflict Vulnerability
CVE-2026-60137 WordPress Core SQL Injection Vulnerability

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.

CISA Adds Three Known Exploited Vulnerabilities to Catalog

CISA — Thu, 16 Jul 26 12:00:00 +0000

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-25089 Fortinet FortiSandbox OS Command Injection Vulnerability
CVE-2026-39808 Fortinet FortiSandbox OS Command Injection Vulnerability
CVE-2026-58644 Microsoft SharePoint Deserialization of Untrusted Data Vulnerability

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA — Wed, 15 Jul 26 12:00:00 +0000

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2023-4346 KNX Association KNX Protocol Connection Authorization Option 1 Overly Restrictive Account Lockout Mechanism Vulnerability
CVE-2026-46817 Oracle E-Business Suite Improper Privilege Management Vulnerability

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.

CISA Adds Four Known Exploited Vulnerabilities to Catalog

CISA — Tue, 14 Jul 26 12:00:00 +0000

CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-15409 SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability
CVE-2026-15410 SonicWall SMA1000 Appliances Code Injection Vulnerability
CVE-2026-56155 Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability
CVE-2026-56164 Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability

These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.

CISA Urges SharePoint Hardening After New Exploitations

CISA — Tue, 14 Jul 26 12:00:00 +0000

Update July 16, 2026:

CISA has updated this Alert to reflect the addition of CVE-2026-58644 to its Known Exploited Vulnerabilities (KEV) Catalog on July 16, 2026.

CISA is aware of active exploitation of vulnerabilities CVE-2026-32201, CVE-2026-45659, CVE-2026-56164, and CVE-2026-58644, enabling cyber threat actors to gain unauthorized access to on-premises SharePoint Server instances. These vulnerabilities affect all supported on-premises SharePoint Server versions (Subscription Edition, 2019, and 2016) and involve establishing remote code execution (RCE) and post-exploitation activities, such as stealing Internet Information Services (IIS) machine keys and performing deserialization techniques, to gain persistence and deploy malware. Organizations should monitor affected SharePoint Servers closely for any signs of exploitation or unusual activity.

Additionally, the following newly disclosed CVE is not yet known to have been exploited, but Microsoft has identified it as posing a potential risk if left unpatched:

CVE-2026-55040

CISA urges organizations to detect and remediate a potential compromise by implementing the following recommendations:

Apply the latest patches and security updates from Microsoft, verify that installation completes successfully, and shorten patching cycles when possible.
Verify that Antimalware Scan Interface (AMSI) integration is enabled for each SharePoint web application. Follow Microsoft’s Configure AMSI integration with SharePoint Server guidance to ensure proper configuration and select the “Full Mode” option for the Request Body Scan Mode, where feasible. When compromise is expected, use the following AMSI and Microsoft Defender Antivirus (MDAV) detections, and implement your organization’s incident response plan for any positive detections:
- AMSI: Exploit:Script/SuspSignoutReqBody.A – request body scanning; SharePoint Server Subscription only; Microsoft has blocked observed attempts.
- AMSI: Exploit:Script/ToolPaneAuthBypass.A – request header scanning; SharePoint Server 2016, 2019, and Subscription Edition.
- AMSI: Exploit:Script/ToolPaneAuthBypass.C – RCE coverage; SharePoint Server 2016, 2019, and Subscription Edition.
- MDAV: Backdoor:MSIL/LeakFang.A!dha – post-exploitation activity alert involving IIS-protected secrets.

In addition, CISA recommends that organizations implement the following SharePoint Server hardening measures:

Before rotating IIS machine keys, hunt for and remediate any intrusion artifacts, including machine-key harvesters, that could allow for the keys to be stolen again. Review Microsoft’s Improved ASP.NET view state security and key management for best practices.
Establish tailored logging mechanisms to detect and monitor exploitation activities. Review telemetry for anomalous requests, suspicious SharePoint worker-process activity, webshells, and machine-key access. For more information, see CISA’s Best Practices for Event Logging and Threat Detection.
Avoid exposing SharePoint Servers directly to the internet unless necessary; and if necessary, only configure a SharePoint Server behind a Layer 7 reverse proxy or equivalent application-layer security control that requires authentication and can inspect and filter requests.
Block external access to SharePoint Central Administration, restrict farm and database communications to required systems, and review Microsoft’s SharePoint Server security-hardening guidance for role-specific ports, services, and Web.config settings.

CISA urges users and administrators to review the Alert UPDATE: Microsoft Releases Guidance on Exploitation of SharePoint Vulnerabilities and apply necessary updates.

CISA added the following vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog: CVE-2026-32201 on April 14, 2026; CVE-2026-45659 on July 1, 2026; CVE-2026-56164 on July 14, 2026; and CVE-2026-58644 on July 16, 2026.

Note: CISA may update this Alert to reflect new guidance issued by CISA or other parties.

Organizations should report incidents or anomalous activity to CISA via CISA’s 24/7 Operations Center at contact@cisa.dhs.gov or 1-844-Say-CISA (1-844-729-2472).

Disclaimer

The information in this report is being provided “as is” for informational purposes only. CISA does not endorse any commercial entity, product, company, or service, including any entities, products, or services linked within this document. Any reference to specific commercial entities, products, processes, or services by service mark, trademark, manufacturer, or otherwise, does not constitute or imply endorsement, recommendation, or favoring by CISA. 

Acknowledgements

Microsoft contributed to this Alert.

CISA Adds One Known Exploited Vulnerability to Catalog

CISA — Mon, 13 Jul 26 12:00:00 +0000

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2008-4128 Cisco IOS Cross-Site Request Forgery Vulnerability

This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise.

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA — Fri, 10 Jul 26 12:00:00 +0000

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-48939 iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability
CVE-2026-56291 Balbooa Forms Unrestricted Upload of File with Dangerous Type Vulnerability

These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.

CISA Adds Three Known Exploited Vulnerabilities to Catalog

CISA — Tue, 07 Jul 26 12:00:00 +0000

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-48908 JoomShaper SP Page Builder Unrestricted Upload of File with Dangerous Type Vulnerability
CVE-2026-55255 Langflow Authorization Bypass Through User-Controlled Key Vulnerability
CVE-2026-56290 Joomlack Page Builder Improper Access Control Vulnerability

These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.

CISA Adds One Known Exploited Vulnerability to Catalog

CISA — Tue, 07 Jul 26 12:00:00 +0000

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-48282 Adobe ColdFusion Path Traversal Vulnerability

This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise.

CISA Adds One Known Exploited Vulnerability to Catalog

CISA — Wed, 01 Jul 26 12:00:00 +0000

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-45659 Microsoft SharePoint Server Deserialization of Untrusted Data Vulnerability

This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise.

CISA Adds One Known Exploited Vulnerability to Catalog

CISA — Mon, 29 Jun 26 12:00:00 +0000

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-48558 SimpleHelp Authentication Bypass Vulnerability

This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise.

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA — Thu, 25 Jun 26 12:00:00 +0000

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-12569 PTC Windchill and FlexPLM Improper Input Validation Vulnerability
CVE-2026-20230 Cisco Unified Communications Manager Server-Side Request Forgery (SSRF) Vulnerability

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.

CISA Adds Four Known Exploited Vulnerabilities to Catalog

CISA — Tue, 23 Jun 26 12:00:00 +0000

CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2025-67038 Lantronix EDS5000 Code Injection Vulnerability
CVE-2026-34908 Ubiquiti UniFi OS Improper Access Control Vulnerability
CVE-2026-34909 Ubiquiti UniFi OS Path Traversal Vulnerability
CVE-2026-34910 Ubiquiti UniFi OS Improper Input Validation Vulnerability

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.

CISA Adds One Known Exploited Vulnerability to Catalog

CISA — Thu, 18 Jun 26 12:00:00 +0000

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-20253 Splunk Enterprise Missing Authentication for Critical Function Vulnerability

This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise.

Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies, updating BOD 22-01. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s Known Exploited Vulnerabilities (KEV) Catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied.

Aware of an exploited vulnerability not currently listed in the KEV Catalog? Submit for potential addition: KEV Nomination Form. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance.

CISA Urges Hardening Fortinet Devices After Reports of Credential Exposure

CISA — Thu, 18 Jun 26 12:00:00 +0000

Update June 22, 2026:
CISA has updated this Alert to incorporate the link to Fortinet’s recent guidance on this activity.

CISA is aware of global reports that malicious cyber actors have targeted internet-accessible Fortinet devices across government and private sector organizations using compromised credentials. This activity, referred to as FortiBleed, involves the exposure of leaked credentials associated with approximately 74,000 Fortinet devices, including firewalls and virtual private network (VPN) gateways.

To defend against this malicious cyber activity, CISA urges impacted Fortinet customers with FortiGate appliances and associated secure sockets layer (SSL) VPN gateways to immediately:

Terminate sessions and reset credentials. Terminate all active SSL VPN and administrative sessions. Reset all Fortinet VPN and administrative passwords, especially on internet-facing systems, and enforce strong password policies.
Ensure secure credential storage. Confirm your organization’s use of the Password-Based Key Derivation Function 2 (PBKDF2) algorithm to store administrator credentials and remove weaker legacy hashes per Fortinet’s guidance (see, Fortinet's Technical Tip: Enforcing PBKDF2 as hash function for administrator accounts in FortiOS v7.2.11 and later).
Review logs. Review firewall, VPN, authentication, and domain controller logs for lateral movement, unusual access, suspicious accounts, or unauthorized configuration changes.
Enable phishing-resistant multifactor authentication (MFA). Require phishing-resistant MFA on all remote access and administrative accounts and ensure it is enforced on all external gateways and administrative interfaces.
Reduce the attack surface and lock down management access. Ensure the administration of your firewall is inaccessible from the public internet; restrict Fortinet management interfaces to trusted internal networks; and remove or disable any unauthorized or unnecessary accounts.

See the following resources to determine your organization’s potential impact and find additional guidance on the credentials compromised:

Tech Times: Fortinet FortiGate Credential Leak Hits 73,932 Firewalls: Half the Internet-Facing Fleet
SOCRadar: FortiBleed: The Compromise of 80,000+ Fortinet Firewalls
Hudson Rock: FortiBleed: 75,000 Fortinet Firewalls Compromised: Global Enterprises Exposed – Claim Your Ethical Disclosure
Arctic Wolf: Active FortiBleed Campaign Impacting Fortinet Devices Across 194 Countries
Fortinet: Attacks at the Speed of AI
Fortinet: Analysis of Reported Credential Compromise of FortiGate Devices

Disclaimer

CISA Adds One Known Exploited Vulnerability to Catalog

CISA — Tue, 16 Jun 26 12:00:00 +0000

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-48907 Widget Factory Joomla Content Editor Improper Access Control Vulnerability

This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise.

Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies, updating BOD 22-01. BOD 26-04 reinforces the importance of the KEV catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s Known Exploited Vulnerabilities (KEV) catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied.

While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV catalog vulnerabilities. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

Aware of an exploited vulnerability not currently listed in the KEV catalog? Submit for potential addition: KEV Nomination Form. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance.

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA — Mon, 15 Jun 26 12:00:00 +0000

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-20262 Cisco Catalyst SD-WAN Manager Directory or Path Traversal Vulnerability
CVE-2026-54420 LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability

These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.

Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies, updating BOD 22-01. BOD 26-04 reinforces the importance of the KEV catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s Known Exploited Vulnerabilities (KEV) catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied.

CISA Adds One Known Exploited Vulnerability to Catalog

CISA — Fri, 12 Jun 26 12:00:00 +0000

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-35273 Oracle PeopleSoft Enterprise PeopleTools Missing Authentication for Critical Function Vulnerability

This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise.

Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies, updating BOD 22-01. BOD 26-04 reinforces the importance of the KEV catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s Known Exploited Vulnerabilities (KEV) Catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied.

CISA Adds One Known Exploited Vulnerability to Catalog

CISA — Thu, 11 Jun 26 12:00:00 +0000

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-10520 Ivanti Sentry OS Command Injection Vulnerability

This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise.

Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies, updating BOD 22-01. BOD 26-04 reinforces the importance of the KEV catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s Known Exploited Vulnerabilities (KEV) Catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied.

CISA Adds Three Known Exploited Vulnerabilities to Catalog

CISA — Tue, 09 Jun 26 12:00:00 +0000

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-7473 Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability
CVE-2026-11645 Google Chromium V8 Out-of-Bounds Read and Write Vulnerability
CVE-2026-20245 Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output Vulnerability

These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.

Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information.

Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA — Mon, 08 Jun 26 12:00:00 +0000

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-42271 BerriAI LiteLLM Command Injection Vulnerability
CVE-2026-50751 Check Point Security Gateway Improper Authentication Vulnerability

These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.

CISA Adds One Known Exploited Vulnerability to Catalog

CISA — Fri, 05 Jun 26 12:00:00 +0000

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-28318 SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability

This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise.

CISA Adds One Known Exploited Vulnerability to Catalog

CISA — Wed, 03 Jun 26 12:00:00 +0000

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-45247 Mirasvit Full Page Cache Warmer Deserialization of Untrusted Data Vulnerability

This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise.

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA — Tue, 02 Jun 26 12:00:00 +0000

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2022-0492 Linux Kernel Improper Authentication Vulnerability
CVE-2025-48595 Android Framework Integer Overflow Vulnerability

These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.

CISA Adds One Known Exploited Vulnerability to Catalog

CISA — Mon, 01 Jun 26 12:00:00 +0000

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2024-21182 Oracle WebLogic Server Unspecified Vulnerability

This type of vulnerability is a frequent attack vectors for malicious cyber actors and poses significant risks to the federal enterprise.

CISA Adds One Known Exploited Vulnerability to Catalog

CISA — Fri, 29 May 26 12:00:00 +0000

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-0257 Palo Alto Networks PAN-OS Authentication Bypass Vulnerability

This type of vulnerability is a frequent attack vectors for malicious cyber actors and poses significant risks to the federal enterprise.

Supply Chain Compromises Impact Nx Console and GitHub Repositories

CISA — Thu, 28 May 26 12:00:00 +0000

CISA is prioritizing the response to multiple emerging software supply chain intrusion campaigns targeting developer ecosystems Continuous Integration/Continuous Development (CI/CD) pipelines. These recent incidents, including the GitHub compromise via a malicious Nx Console Visual Studio Code (VS Code) extension and the “Megalodon” supply chain intrusion campaign, demonstrate how cyber threat actors are abusing tools and processes that support enterprise, cloud, and DevOps environments—specifically CI/CD pipelines, code extensions and workflows.

Threat actors leveraged a prior compromise of Nx developer systems to compromise a GitHub employee’s device through a poisoned third-party VS Code extension, resulting in unauthorized access and exfiltration of internal GitHub repositories. The malicious extension version (18.95.0) was distributed through VS Code’s automatic update mechanism, meaning systems with Nx Console previously installed may have received the malicious build without developers taking any manual installation action. GitHub released a security advisory on this activity, and CVE-2026-48027 has been assigned to the malicious version of Nx Console and added to CISA’s Known Exploited Vulnerabilities (KEV) Catalog.

Additionally, in a campaign known as “Megalodon,” a cyber threat actor injected malicious GitHub Action workflows to harvest CI/CD secrets, cloud credentials, and tokens, impacting both development and deployment pipelines in public GitHub repositories.

CISA urges organizations to implement the following recommendations to detect and remediate a potential compromise:

Monitor and audit workflow files and contributor activity for suspicious pull requests and direct commits, particularly those authored by automated accounts.
Revert unauthorized changes, especially from automated accounts, e.g., build-bot, auto-ci, ci-bot, pipeline-bot and especially those made after May 18, 2026.

If your organization discovers a compromise resulting from previously compromised GitHub or Nx Console software, CISA recommends the following steps:

Conduct a forensics review of CI/CD logs, cloud audit trails, and affected developer machines.
Rotate/revoke all secrets including: all credentials, tokens, and secrets accessible to CI/CD pipelines, including API keys, cloud provider credentials (Amazon Web Services, Google Cloud Platform, Microsoft Azure), SSH keys, Docker/npm/PyPI/Vault/Terraform/Kubernetes tokens, GitHub/GitLab/Bitbucket tokens, and developer or pipeline secrets.
Notify proper stakeholders if necessary.

CISA recommends the following best practices for using package repos:

Wait at least three hours before pulling a new package. This gives the software community time to identify suspicious or malicious packages before they are widely downloaded.
Pin software to specific trusted versions. Pinning software prevents pulling a malicious or unscreened package during the build process.
Only pull packages from known and trusted sources. Relying on known and trusted sources reduces the likelihood of downloading a package that has been maliciously forked.

See the following resources for additional guidance on these compromises:

GitHub: Investigating unauthorized access to GitHub-owned repositories
Nx: Postmortem: Nx Console v18.95.0 supply-chain compromise
Ox Security: Megalodon: CI/CD Malware Spreading Across GitHub Repositories
StepSecurity: Nx Console VS Code Extension Compromised
SafeDep: Megalodon: Mass GitHub Repo Backdooring via CI Workflows

Disclaimer

CISA Adds Three Known Exploited Vulnerabilities to Catalog

CISA — Wed, 27 May 26 12:00:00 +0000

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-8398 Daemon Tools Lite Embedded Malicious Code Vulnerability
CVE-2026-45321 TanStack Unspecified Vulnerability
CVE-2026-48027 Nx Console Embedded Malicious Code Vulnerability

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.