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vulnerabilityhighActive ExploitationKnown Exploited VulnerabilitiesCVE-2012-1854CVE-2020-9715CVE-2023-21529CVE-2023-36424

Apr 13, 2026 • CISA

CISA Adds Seven Known Exploited Vulnerabilities to Catalog

The Cybersecurity and Infrastructure Security Agency (CISA) has updated its Known Exploited Vulnerabilities (KEV) Catalog with seven new entries following...

Source
CISA Current Activity
Category
vulnerability
Severity
high

Executive Summary

The Cybersecurity and Infrastructure Security Agency (CISA) has updated its Known Exploited Vulnerabilities (KEV) Catalog with seven new entries following evidence of active exploitation in the wild. These vulnerabilities span critical software including Microsoft Windows, Exchange Server, Visual Basic for Applications, Adobe Acrobat, and Fortinet products. Risks range from insecure library loading and use-after-free errors to SQL injection and prototype pollution. While Binding Operational Directive 22-01 mandates remediation for Federal Civilian Executive Branch agencies, CISA strongly advises all organizations to prioritize patching these flaws immediately. Failure to remediate exposes enterprises to significant cyberattacks leveraging these frequent attack vectors. Organizations should integrate KEV Catalog monitoring into their vulnerability management practices to mitigate active threats and reduce exposure to malicious cyber actors targeting unpatched systems.

Summary

CISA has added seven new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2012-1854 Microsoft Visual Basic for Applications Insecure Library Loading Vulnerability CVE-2020-9715 Adobe Acrobat Use-After-Free Vulnerability CVE-2023-21529 Microsoft Exchange Server Deserialization of Untrusted Data Vulnerability CVE-2023-36424 Microsoft Windows Out-of-Bounds Read Vulnerability CVE-2025-60710 Microsoft Windows Link Following Vulnerability CVE-2026-21643 Fortinet SQL Injection Vulnerability CVE-2026-34621 Adobe Acrobat and Reader Prototype Pollution Vulnerability These types of vulnerabilities are frequent attack vectors 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 .

Published Analysis

The Cybersecurity and Infrastructure Security Agency (CISA) has updated its Known Exploited Vulnerabilities (KEV) Catalog with seven new entries following evidence of active exploitation in the wild. These vulnerabilities span critical software including Microsoft Windows, Exchange Server, Visual Basic for Applications, Adobe Acrobat, and Fortinet products. Risks range from insecure library loading and use-after-free errors to SQL injection and prototype pollution. While Binding Operational Directive 22-01 mandates remediation for Federal Civilian Executive Branch agencies, CISA strongly advises all organizations to prioritize patching these flaws immediately. Failure to remediate exposes enterprises to significant cyberattacks leveraging these frequent attack vectors. Organizations should integrate KEV Catalog monitoring into their vulnerability management practices to mitigate active threats and reduce exposure to malicious cyber actors targeting unpatched systems. CISA has added seven new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2012-1854 Microsoft Visual Basic for Applications Insecure Library Loading Vulnerability CVE-2020-9715 Adobe Acrobat Use-After-Free Vulnerability CVE-2023-21529 Microsoft Exchange Server Deserialization of Untrusted Data Vulnerability CVE-2023-36424 Microsoft Windows Out-of-Bounds Read Vulnerability CVE-2025-60710 Microsoft Windows Link Following Vulnerability CVE-2026-21643 Fortinet SQL Injection Vulnerability CVE-2026-34621 Adobe Acrobat and Reader Prototype Pollution Vulnerability These types of vulnerabilities are frequent attack vectors 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 has added seven new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2012-1854 Microsoft Visual Basic for Applications Insecure Library Loading Vulnerability CVE-2020-9715 Adobe Acrobat Use-After-Free Vulnerability CVE-2023-21529 Microsoft Exchange Server Deserialization of Untrusted Data Vulnerability CVE-2023-36424 Microsoft Windows Out-of-Bounds Read Vulnerability CVE-2025-60710 Microsoft Windows Link Following Vulnerability CVE-2026-21643 Fortinet SQL Injection Vulnerability CVE-2026-34621 Adobe Acrobat and Reader Prototype Pollution Vulnerability These types of vulnerabilities are frequent attack vectors 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 .

Linked Entities

  • CVE-2012-1854
  • CVE-2020-9715
  • CVE-2023-21529
  • CVE-2023-36424
  • CVE-2025-60710
  • CVE-2026-21643
  • CVE-2026-34621