cve-2026-40408

  1. CVE-2026-40408: Windows WAN ARP Driver Use-After-Free Elevation to SYSTEM

    Microsoft disclosed CVE-2026-40408 on May 12, 2026, as an Important-rated Windows WAN ARP Driver elevation-of-privilege vulnerability that affects supported Windows client and server releases and allows a locally authenticated attacker to gain SYSTEM privileges after exploiting a use-after-free...
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    • cve-2026-40408 kernel use-after-free patch tuesday windows security
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