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TI-2025-19897 Aliases CVE-2025-27026GHSA-q3gw-3m7f-273f

Improper Access Control Granularity impacting Infinera G42

Priority LOW 23CWE-1220Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00381 32nd percentileScored 2026-11-07
Fix Fixed G42 (Infinera): 8.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NokiaG426.1.3 to before 8.08.0Patch availableCNA
  • G42 VendorNokia Affected 6.1.3 to before 8.0 Fixed in 8.0 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:nokia:g42_firmware:*:*:*:*:*:*:*:*6.1.3 to before 8.0VulnerableNokia
cpe:2.3:h:nokia:g42:-:*:*:*:*:*:*:*not specified by NVDRunning onNokia
  • cpe:2.3:o:nokia:g42_firmware:*:*:*:*:*:*:*:* Versions 6.1.3 to before 8.0 Vulnerable ·Nokia
  • cpe:2.3:h:nokia:g42:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Nokia

Remediation

  • Fix · CNA G42 (Infinera) Fixed in 8.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Infinera G42 8.0

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2025-19895 Improper File Access in Infinera G42Priority LOW 29
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-27026
  2. 2026-10-03 Alias added: GHSA-q3gw-3m7f-273f

References

Advisory 2

  • TI-2025-19893 Path Traversal Vulnerability in Infinera G42 CVSS 3.1HIGH 7.5
  • TI-2025-19892 Operating System Misconfiguration in Infinera G42 CVSS 3.1HIGH 7.8
  • TI-2025-19894 Improper Input Validation in Infinera G42 CVSS 3.1MEDIUM 6.5
  • TI-2025-19895 Improper File Access in Infinera G42 CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences