CVE-2025-27025 Improper File Access in Infinera G42
Attackers can exploit directory traversal in the G42 service to read or write arbitrary files as root, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-27025?
CVE-2025-27025 is a high-severity path traversal vulnerability in Infinera G42, published on 2 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-280
Which versions are affected by CVE-2025-27025?
How do I fix CVE-2025-27025?
No fix has been published for CVE-2025-27025 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2025-27025 being exploited?
There is no known exploitation of CVE-2025-27025 in the wild and no public exploit code.
Sources
Also known as GHSA-f553-27vh-gf4h.