CVE-2025-27023: Improper Input Validation in Infinera G42

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% 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-20

Description

Lack or insufficent input validation in WebGUI CLI web in Infinera G42 version R6.1.3 allows remote authenticated users to read all OS files via crafted CLI commands. Details: The web interface based management of the Infinera G42 appliance enables the feature of executing a restricted set of commands. This feature also offers the option to execute a script-file already present on the target device. When a non-script or incorrect file is specified, the content of the file is shown along with an error message. Due to an execution of the http service with a privileged user all files on the file system can be viewed this way.

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

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