CVE-2026-96249CWE-416

CVE-2026-96249

High · published October 13, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
22.7
In the wild
Unconfirmed
What it is

Use after free in Windows Win32 Kernel Subsystem 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
0.00311 · 22.7th percentile
Weakness
CWE-416 · Use After Free
Published
2026-10-13T23:21Z
Affected products (9)
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_2025< 10.0.26100.3365010.0.26100.33650
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96249 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:35Z
    EPSS moved — → 0%
    epss
  • 13 OCT 19:01Z
    Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
    cvelistv5
  • 13 OCT 19:01Z
    Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
    cvelistv5