Cybersecuritynews Microsoft Patches Zero-Day Vulnerability in Windows RasMan Service
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Microsoft has addressed a zero-day vulnerability in the Windows Remote Access Connection Manager (RasMan) service, identified as CVE-2026-21525. This flaw, which allowed attackers to cause denial-of-service conditions on unpatched systems, was actively exploited prior to its disclosure. The vulnerability is linked to a NULL pointer dereference issue.
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Updated 213d ago How this analysis works
Timeline
2026-02-10
CVE-2026-21525 published
2026-02-10
CVE-2026-21525 added to CISA KEV (active exploitation)
2026-02-11
Microsoft announces patch for CVE-2026-21525
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