Windows 11 23h2
CVE-2026-25166
HIGH
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Deserialization of untrusted data in Windows System Image Manager allows an authorized attacker to execute code locally.
AnalysisAI
Local code execution in Windows System Image Manager (Windows 11 23h2, Windows Server 2019/2022) through unsafe deserialization of untrusted data. An authenticated local attacker can exploit this vulnerability to execute arbitrary code with elevated privileges. No patch is currently available.
Technical ContextAI
Classified as CWE-502 (Deserialization of Untrusted Data). Deserialization of untrusted data in Windows System Image Manager allows an authorized attacker to execute code locally.
RemediationAI
Monitor vendor advisories for a patch.
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Same weakness CWE-502 – Deserialization of Untrusted Data
View allSame technique Deserialization
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External POC / Exploit Code
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