cve 2026 42991

  1. CVE-2026-42991: Windows Push Notifications Local Privilege Escalation (Race Condition)

    CVE-2026-42991 is a Microsoft-confirmed Windows Push Notifications elevation-of-privilege vulnerability disclosed on June 9, 2026, affecting supported Windows client and server releases and allowing a local authenticated attacker to gain higher privileges through a race-condition-style flaw. The...
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    • cve 2026 42991 patch tuesday privilege escalation windows security update
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