CVE-2026-70286CWE-122

CVE-2026-70286

High · published October 13, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
29.6
In the wild
Unconfirmed
What it is

Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00369 · 29.6th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-10-13T23:19Z
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70286 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:33Z
    EPSS moved — → 0%
    epss
  • 13 OCT 18:59Z
    Windows Graphics Component Elevation of Privilege Vulnerability
    cvelistv5
  • 13 OCT 18:59Z
    Windows Graphics Component Elevation of Privilege Vulnerability
    cvelistv5