CVE-2026-70021CWE-416

CVE-2026-70021

High · published October 13, 2026

CVSS v3.1
7.0
EPSS
0%
Percentile
17.3
In the wild
Unconfirmed
What it is

Use after free in Windows Direct Composition 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
0.00264 · 17.3th percentile
Weakness
CWE-416 · Use After Free
Published
2026-10-13T23:19Z
Affected products (10)
ProductVersionsFixed in
microsoft/windows_11_24h2< 10.0.26100.971110.0.26100.9711
microsoft/windows_11_24h2< 10.0.26100.971110.0.26100.9711
microsoft/windows_11_25h2< 10.0.26200.971110.0.26200.9711
microsoft/windows_11_25h2< 10.0.26200.971110.0.26200.9711
microsoft/windows_11_26h1< 10.0.28000.323110.0.28000.3231
microsoft/windows_11_26h1< 10.0.28000.323110.0.28000.3231
microsoft/windows_11_26h2< 10.0.26300.971110.0.26300.9711
microsoft/windows_11_26h2< 10.0.26300.971110.0.26300.9711
microsoft/windows_server_2022< 10.0.20348.576110.0.20348.5761
microsoft/windows_server_2025< 10.0.26100.3365010.0.26100.33650
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70021 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:33Z
    EPSS moved — → 0%
    epss
  • 13 OCT 18:59Z
    Windows Direct Composition Elevation of Privilege Vulnerability
    cvelistv5
  • 13 OCT 18:59Z
    Windows Direct Composition Elevation of Privilege Vulnerability
    cvelistv5