CVE-2026-70243CWE-416

CVE-2026-70243

High · published October 13, 2026

CVSS v3.1
7.0
EPSS
0%
Percentile
18.2
In the wild
Unconfirmed
What it is

Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

The record
Technical detail
CVSS v3.1
7.0 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00270 · 18.2th percentile
Weakness
CWE-416 · Use After Free
Published
2026-10-13T23:19Z
Affected products (3)
ProductVersionsFixed in
microsoft/windows_11_23h2< 10.0.22631.765210.0.22631.7652
microsoft/windows_11_23h2< 10.0.22631.765210.0.22631.7652
microsoft/windows_server_2025< 10.0.26100.3365010.0.26100.33650
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70243 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:33Z
    EPSS moved — → 0%
    epss
  • 13 OCT 18:59Z
    Windows Kernel Elevation of Privilege Vulnerability
    cvelistv5
  • 13 OCT 18:59Z
    Windows Kernel Elevation of Privilege Vulnerability
    cvelistv5