FEATURED KEV WATCH

Linux’s CVE-2025-39964 Was Exploited in 340 Days — Faster Than Its 551-Day Median (September 2026)

Our automated tracking framework flagged that CISA added CVE-2025-39964 (Linux Kernel) to the Known Exploited Vulnerabilities (KEV) catalog on September 21, 2026. A KEV listing is CISA’s official confirmation that the flaw is being exploited in the wild — U.S. federal agencies must patch it by a fixed deadline. Here is what our data shows. […]

Read Full Analysis → 3 min read · Sep 21, 2026

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