What’s Vulnerable › Vulnerabilities

CVE-2025-27025: Improper File Access in Infinera G42

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-02 · updated 2026-06-17
• Weakness: CWE-280

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.

Affected products

• Infinera G42: from 6.1.3 before 7.1 — fixed in 7.1

How to fix

Upgrade to a fixed version: Infinera G42 7.1. Check the vendor advisory for mitigations.

References

• https://euvd.enisa.europa.eu/vulnerability/CVE-2025-27025
• https://www.cvcn.gov.it/cvcn/cve/CVE-2025-27025

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