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CISA Known Exploited Vulnerabilities

KEV additions — December 2025

20 CVEs entered the KEV catalog in December 2025.

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Added December 29, 20251

CVECVSSDue date
CVE-2025-148477.5Jan 19, 2026

Added December 22, 20251

CVECVSSDue date
CVE-2023-521638.8Jan 12, 2026

Added December 19, 20251

CVECVSSDue date
CVE-2025-147339.8Dec 26, 2025

Added December 17, 20253

CVECVSSDue date
CVE-2025-2039310Dec 24, 2025
CVE-2025-406026.6Dec 24, 2025
CVE-2025-593749.8Jan 7, 2026

Added December 16, 20251

CVECVSSDue date
CVE-2025-597189.8Dec 23, 2025

Added December 15, 20252

CVECVSSDue date
CVE-2025-146119.8Jan 5, 2026
CVE-2025-435298.8Jan 5, 2026

Added December 12, 20252

CVECVSSDue date
CVE-2018-40638.8Jan 2, 2026
CVE-2025-141748.8Jan 2, 2026

Added December 11, 20251

CVECVSSDue date
CVE-2025-583609.8Jan 1, 2026

Added December 9, 20252

CVECVSSDue date
CVE-2025-62187.8Dec 30, 2025
CVE-2025-622217.8Dec 30, 2025

Added December 8, 20252

CVECVSSDue date
CVE-2022-370559.8Dec 29, 2025
CVE-2025-666449.8Dec 29, 2025

Added December 5, 20251

CVECVSSDue date
CVE-2025-55182ransomware10Dec 12, 2025

Added December 3, 20251

CVECVSSDue date
CVE-2021-268288.8Dec 24, 2025

Added December 2, 20252

CVECVSSDue date
CVE-2025-485727.8Dec 23, 2025
CVE-2025-486335.5Dec 23, 2025