CVE-2026-72936

EUVD-2026-73664
Use after free in Windows SMB Client allows an unauthorized attacker to execute code over a network.
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 11
23H2 (arm64, x64)
KB5122880
24H2 (arm64, x64)
KB5124008
25H2 (arm64, x64)
KB5124008
26H1 (arm64, x64)
KB5124012
Windows Server 2022
Server Core
KB5122882
Standard
KB5122882
Windows Server 2025
Server Core
KB5122871
Standard
KB5122871
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72936