CVE-2026-21519 is a vulnerability tracked across 4 threat clusters and 8 intelligence report mentions on ThreatCluster. First observed February 10, 2026; most recent activity February 11, 2026.
On February 10, 2026, Microsoft released a security update addressing 59 vulnerabilities, including six zero-day flaws that were actively exploited prior to the patch. The vulnerabilities affect various Microsoft…
Microsoft has issued urgent security updates for a critical zero-day vulnerability in the Windows Desktop Window Manager (DWM), tracked as CVE-2026-21519. This flaw is actively being exploited, enabling attackers to…
Microsoft has released updates to address a critical zero-day vulnerability in Windows Shell, tracked as CVE-2026-21510, which is actively being exploited. This security flaw allows remote attackers to bypass essential…
On February 10, 2026, Adobe and Microsoft released security patches addressing numerous vulnerabilities, including 36 CVEs published on the same day. Notably, three CVEs (CVE-2026-21510, CVE-2026-21514, and…