What’s Vulnerable › Vulnerabilities

CVE-2025-27021: Operating System Misconfiguration in Infinera G42

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% 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-266

Description

The misconfiguration in the sudoers configuration of the operating system in Infinera G42 version R6.1.3 allows low privileged OS users to read/write physical memory via devmem command line tool. This could allow sensitive information disclosure, denial of service, and privilege escalation by tampering with kernel memory. Details: The output of "sudo -l" reports the presence of "devmem" command executable as super user without using a password. This command allows to read and write an arbitrary memory area of the target device, specifying an absolute address.

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-2025-27021
• https://www.cvcn.gov.it/cvcn/cve/CVE-2025-27021

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