Vulnerability in Infinera G42
CVE-2025-27025
The target device exposes a service on a specific TCP port with a configured endpoint. The access to that endpoint is granted using a Basic Authentication method. The endpoint accepts also the PUT method and it is possible to write files on the target device file system. Files are written as root. Using Postman it is possible to perform a Directory Traversal attack and write files into any location of the device file system. Similarly to the PUT method, it is possible to leverage the same mechanism to read any file from the file system by using the GET method.
EPSS: 0.006 (46.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Infinera G42 — versions 6.1.3
Weakness classification (CWE)
References
- a6d3dc9e-0591-4a13-bce7-0f5b31ff6158 (government-resource)
- a6d3dc9e-0591-4a13-bce7-0f5b31ff6158 (vdb-entry)
Frequently asked questions
- What is CVE-2025-27025?
- CVE-2025-27025 is a high-severity vulnerability in Infinera G42, classified under Improper Handling of Insufficient Permissions or Privileges. CVSS score: 8.8/10. Published 2025-07-02.
- How severe is CVE-2025-27025?
- High severity. CVSS v3 base score is 8.8 out of 10.