CVE-2026-45595

EUVD-2026-35554
Protection mechanism failure in Windows Mark of the Web (MOTW) allows an unauthorized attacker to bypass a security feature over a network.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.4 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 34%
Affected Products (NVD)
VendorProductVersion
microsoftwindows_10_1607
𝑥
< 10.0.14393.9234
microsoftwindows_10_1607
𝑥
< 10.0.14393.9234
microsoftwindows_10_1809
𝑥
< 10.0.17763.8880
microsoftwindows_10_1809
𝑥
< 10.0.17763.8880
microsoftwindows_10_21h2
𝑥
< 10.0.19044.7417
microsoftwindows_10_21h2
𝑥
< 10.0.19044.7417
microsoftwindows_10_21h2
𝑥
< 10.0.19044.7417
microsoftwindows_10_22h2
𝑥
< 10.0.19045.7417
microsoftwindows_10_22h2
𝑥
< 10.0.19045.7417
microsoftwindows_10_22h2
𝑥
< 10.0.19045.7417
microsoftwindows_11_23h2
𝑥
< 10.0.22631.7219
microsoftwindows_11_23h2
𝑥
< 10.0.22631.7219
microsoftwindows_11_24h2
𝑥
< 10.0.26100.8655
microsoftwindows_11_24h2
𝑥
< 10.0.26100.8655
microsoftwindows_11_25h2
𝑥
< 10.0.26200.8655
microsoftwindows_11_25h2
𝑥
< 10.0.26200.8655
microsoftwindows_11_26h1
𝑥
< 10.0.28000.2269
microsoftwindows_11_26h1
𝑥
< 10.0.28000.2269
microsoftwindows_server_2016
𝑥
< 10.0.14393.9234
microsoftwindows_server_2019
𝑥
< 10.0.17763.8880
microsoftwindows_server_2022
𝑥
< 10.0.20348.5256
microsoftwindows_server_2025
𝑥
< 10.0.26100.32995
𝑥
= Vulnerable software versions
Windows Releases
Platform
Version
Windows 10
1607 (x64, x86)
1809 (x64, x86)
21H2 (arm64, x64, x86)
22H2 (arm64, x64, x86)
Windows 11
23H2 (arm64, x64)
24H2 (arm64, x64)
25H2 (arm64, x64)
26H1 (arm64, x64)
Windows Server 2012 R2
Server Core
Standard
Windows Server 2016
Server Core
Standard
Windows Server 2019
Server Core
Standard
Windows Server 2022
Server Core
Standard
Windows Server 2025
Server Core
Standard