CVE-2025-27021

Operating System Misconfiguration in Infinera G42

HIGH
7.8
CVSS Score
Published: July 2, 2025 at 08:45 AM UTC
Updated: June 17, 2026 at 09:02 AM UTC
2 products affected across 2 vendorsG42 FirmwareG42

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.1.3 ≤ v < 7.1
nokia-g42 (same device)
6.1.3 ≤ v < 7.16.1.3
Affected range stops below 7.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

VDB EntryThird Party Advisory
Source: a6d3dc9e-0591-4a13-bce7-0f5b31ff6158
https://euvd.enisa.europa.eu/vulnerability/CVE-2025-27021
US Government ResourceThird Party Advisory
Source: a6d3dc9e-0591-4a13-bce7-0f5b31ff6158
https://www.cvcn.gov.it/cvcn/cve/CVE-2025-27021

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-266

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