# CVE-2025-27210: nodejs node

- Exploited (CISA KEV): no
- Published: 2025-07-18
- CVSS: 7.5 HIGH (v3.0)
- EPSS: 14.3% (97th percentile)

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.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Blocks by default | 2025-08-11 | 24 |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2025-08-24 | 37 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### Cloudflare

- 2025-08-11 · new · rule 54dd826f578c483196ce852b6f1c2d12 · default Block
  > Node.js - Directory Traversal - CVE:CVE-2025-27210. Previous action: Log. New action: Block. This is a New Detection
  Source: https://developers.cloudflare.com/changelog/post/2025-08-11-waf-release/

### F5

- 2025-08-24 · new · rule 200007100
  > Added: signature 200007100 "Node.js Path Traversal (Parameter)" (Path Traversal, risk High), systems: Node.js. References: CVE-2025-27210.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2025-08-24 · new · rule 200007101
  > Added: signature 200007101 "Node.js Path Traversal (Header)" (Path Traversal, risk High), systems: Node.js. References: CVE-2025-27210.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2025-27210 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2025-27210