CVE-2026-26172

EUVD-2026-22406
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
Race Condition
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 14%
Affected Products (NVD)
VendorProductVersion
microsoftwindows_10_21h2
𝑥
< 10.0.19044.7184
microsoftwindows_10_21h2
𝑥
< 10.0.19044.7184
microsoftwindows_10_21h2
𝑥
< 10.0.19044.7184
microsoftwindows_10_22h2
𝑥
< 10.0.19045.7184
microsoftwindows_10_22h2
𝑥
< 10.0.19045.7184
microsoftwindows_10_22h2
𝑥
< 10.0.19045.7184
microsoftwindows_11_23h2
𝑥
< 10.0.22631.6936
microsoftwindows_11_23h2
𝑥
< 10.0.22631.6936
microsoftwindows_11_24h2
𝑥
< 10.0.26100.8246
microsoftwindows_11_24h2
𝑥
< 10.0.26100.8246
microsoftwindows_11_25h2
𝑥
< 10.0.26200.8246
microsoftwindows_11_25h2
𝑥
< 10.0.26200.8246
microsoftwindows_11_26h1
𝑥
< 10.0.28000.1836
microsoftwindows_11_26h1
𝑥
< 10.0.28000.1836
microsoftwindows_server_2022
𝑥
< 10.0.20348.5020
microsoftwindows_server_2022_23h2
𝑥
< 10.0.25398.2274
microsoftwindows_server_2025
𝑥
< 10.0.26100.32690
𝑥
= Vulnerable software versions
Windows Releases
Platform
Version
Windows 10
21H2 (arm64, x64, x86)
22H2 (arm64, x64, x86)
Windows 11
23H2 (arm64, x64)
24H2 (arm64, x64)
25H2 (arm64, x64)
26H1 (arm64, x64)
Windows Server 2022
23H2 Server Core
Server Core
Standard
Windows Server 2025
Server Core
Standard