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CISA Known Exploited Vulnerabilities

KEV additions — March 2026

15 CVEs entered the KEV catalog in March 2026.

Added March 25, 20261

CVECVSSEPSSDue date
CVE-2026-330170.5 %April 8, 2026

Added March 20, 20263

CVECVSSEPSSDue date
CVE-2025-312778.80.2 %April 3, 2026
CVE-2025-324321080.4 %April 3, 2026
CVE-2025-540689.858.8 %April 3, 2026

Added March 19, 20261

CVECVSSEPSSDue date
CVE-2026-20131ransomware101.3 %March 22, 2026

Added March 18, 20261

CVECVSSEPSSDue date
CVE-2026-209639.84.9 %March 21, 2026

Added March 16, 20261

CVECVSSEPSSDue date
CVE-2025-478134.325.0 %March 30, 2026

Added March 13, 20262

CVECVSSEPSSDue date
CVE-2026-39098.827.1 %March 27, 2026
CVE-2026-39108.821.9 %March 27, 2026

Added March 11, 20261

CVECVSSEPSSDue date
CVE-2025-686138.878.2 %March 25, 2026

Added March 9, 20263

CVECVSSEPSSDue date
CVE-2021-220547.588.9 %March 23, 2026
CVE-2025-263999.816.9 %March 12, 2026
CVE-2026-16038.655.9 %March 23, 2026

Added March 3, 20262

CVECVSSEPSSDue date
CVE-2026-213857.80.2 %March 24, 2026
CVE-2026-227198.12.1 %March 24, 2026