CVE-2026-25166

Deserialization of untrusted data in Windows System Image Manager allows an authorized attacker to execute code locally.

Score

CVSS 3.1 7.8 High

Status

Analyzed - secure@microsoft.com

Published

2026-03-10

Last modified

2026-06-19

Weaknesses

CWE-502

Affected products

• Windows 10 1607 (Microsoft)
• Windows 10 1809 (Microsoft)
• Windows 10 21h2 (Microsoft)
• Windows 10 22h2 (Microsoft)
• Windows 10 Adk Version 2004 (Microsoft)
• Windows 11 23h2 (Microsoft)
• Windows 11 24h2 (Microsoft)
• Windows 11 25h2 (Microsoft)
• Windows 11 26h1 (Microsoft)
• Windows 11 Adk 22H2 (Microsoft)
• Windows 11 Adk 23h2 (Microsoft)
• Windows 11 Adk 24H2 (Microsoft)
• Windows Server 2016 (Microsoft)
• Windows Server 2019 (Microsoft)
• Windows Server 2022 (Microsoft)
• Windows Server 2022 23h2 (Microsoft)
• Windows Server 2022 Adk (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25166