CVE-2025-27026

Improper Access Control Granularity impacting Infinera G42

MEDIUM
4.9
CVSS Score
Published: July 2, 2025 at 01:42 PM UTC
Updated: June 17, 2026 at 09:02 AM UTC
2 products affected across 2 vendorsG42 FirmwareG42

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Severity
MEDIUM4.9
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

A missing double-check feature in the WebGUI for CLI deactivation in Infinera G42 version R6.1.3 allows an authenticated administrator to make other management interfaces unavailable via local and network interfaces. The CLI deactivation via the WebGUI does not only stop CLI interface but deactivates also Linux Shell, WebGUI and Physical Serial Console access. No confirmation is asked at deactivation time. Loosing access to these services device administrators are at risk of completely loosing device control.

Affected

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

6.1.3 ≤ v < 8.0
nokia-g42 (same device)
6.1.3 ≤ v < 8.06.1.3
Affected range stops below 8.0, 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-2025-27026
US Government ResourceThird Party Advisory
Source: a6d3dc9e-0591-4a13-bce7-0f5b31ff6158
https://www.cvcn.gov.it/cvcn/cve/CVE-2025-27026

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

4.9MEDIUMENISA
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-1220

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