CVE-2026-21253

Use after free in Mailslot File System allows an authorized attacker to elevate privileges locally...

CVE-2026-21253 Mailslot File System Elevation of Privilege Vulnerability

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CVE-2026-21253

CVE-2026-21253 is a Windows vulnerability in the Mailslot File System described as a use-after-free issue that can enable local privilege escalation. The CVE’s CVSS 3.1 score is 7.0 (HIGH) with a local attack vector, high attack complexity, and requires low privileges and no user interaction. The...