High severity7.8NVD Advisory· Published Oct 13, 2026· Updated Oct 13, 2026
CVE-2026-70286
CVE-2026-70286
Description
Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
Affected products
1Patches
Vulnerability mechanics
References
1News mentions
1- Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilitiesCisco Talos Intelligence · Oct 13, 2026