CVE-2026-45635

EUVD-2026-35563
Use after free in Universal Plug and Play (upnp.dll) allows an unauthorized attacker to execute code over a network.
Type Confusion
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.1 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Windows Releases
Platform
Version
Windows 10
1607 (x64, x86)
KB5094122
1809 (x64, x86)
KB5094123
21H2 (arm64, x64, x86)
KB5094127
22H2 (arm64, x64, x86)
KB5094127
Windows 11
23H2 (arm64, x64)
KB5093998
24H2 (arm64, x64)
KB5094126
25H2 (arm64, x64)
KB5094126
26H1 (arm64, x64)
KB5095051
Windows Server 2012
Server Core
KB5094042
Standard
KB5094042
Windows Server 2012 R2
Server Core
KB5094041
Standard
KB5094041
Windows Server 2016
Server Core
KB5094122
Standard
KB5094122
Windows Server 2019
Server Core
KB5094123
Standard
KB5094123
Windows Server 2022
Server Core
KB5094128
Standard
KB5094128
Windows Server 2025
Server Core
KB5094125
Standard
KB5094125
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45635