CVE-2025-27025 - CVE House
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Status published High CVE-2025-27025

Improper File Access in Infinera G42

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Agenzia per la Cybersicurezza Nazionale

References

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CVE-2025-27026
Improper Access Control Granularity impacting Infinera G42
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CVE-2025-27023
Improper Input Validation in Infinera G42
Medium 6.5
CVE-2025-27022
Path Traversal Vulnerability in Infinera G42
High 7.5
CVE-2025-27021
Operating System Misconfiguration in Infinera G42
High 7

Affected Vendor

Affected Software

G42
Vulnerable Versions:
6.1.3

Timeline

Official Publish: July 2nd, 2025
Last Modified: July 2nd, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-280

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.