CVE-2026-26172CWE-362CWE-416

CVE-2026-26172

High · published April 14, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
9.6
In the wild
Unconfirmed
What it is

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications 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:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00202 · 9.6th percentile
Weaknesses
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'); CWE-416 · Use After Free
Published
2026-04-14T22:16Z
Affected products (17)
ProductVersionsFixed in
microsoft/windows_10_21h2< 10.0.19044.718410.0.19044.7184
microsoft/windows_10_21h2< 10.0.19044.718410.0.19044.7184
microsoft/windows_10_21h2< 10.0.19044.718410.0.19044.7184
microsoft/windows_10_22h2< 10.0.19045.718410.0.19045.7184
microsoft/windows_10_22h2< 10.0.19045.718410.0.19045.7184
microsoft/windows_10_22h2< 10.0.19045.718410.0.19045.7184
microsoft/windows_11_23h2< 10.0.22631.693610.0.22631.6936
microsoft/windows_11_23h2< 10.0.22631.693610.0.22631.6936
microsoft/windows_11_24h2< 10.0.26100.824610.0.26100.8246
microsoft/windows_11_24h2< 10.0.26100.824610.0.26100.8246
microsoft/windows_11_25h2< 10.0.26200.824610.0.26200.8246
microsoft/windows_11_25h2< 10.0.26200.824610.0.26200.8246
microsoft/windows_11_26h1< 10.0.28000.183610.0.28000.1836
microsoft/windows_11_26h1< 10.0.28000.183610.0.28000.1836
microsoft/windows_server_2022< 10.0.20348.502010.0.20348.5020
microsoft/windows_server_2022_23h2< 10.0.25398.227410.0.25398.2274
microsoft/windows_server_2025< 10.0.26100.3269010.0.26100.32690
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26172 · [email protected]
EPSS history
Timeline
  • 14 APR 16:58Z
    Windows Push Notifications Elevation of Privilege Vulnerability
    cvelistv5