How severe is CVE-2025-27026?

CVE-2025-27026 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-27026 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-27026?

CVE-2025-27026 affects Nokia G42 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-27026?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-27026 have an EU (EUVD) identifier?

Yes. CVE-2025-27026 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19724.

When was CVE-2025-27026 published?

CVE-2025-27026 was published on 2025-07-02 and last updated on 2026-06-17.

CVE-2025-27026

CVE-2025-27026 is a medium-severity vulnerability in Nokia G42 Firmware with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1220.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-19724
Weakness: CWE-1220
Affected product: Nokia G42 Firmware
Published: 2025-07-02
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-27026?: 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.
How severe is CVE-2025-27026?: CVE-2025-27026 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-27026 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-27026?: CVE-2025-27026 affects Nokia G42 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-27026?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-27026 have an EU (EUVD) identifier?: Yes. CVE-2025-27026 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19724.
When was CVE-2025-27026 published?: CVE-2025-27026 was published on 2025-07-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:nokia:g42_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Nokia G42 Firmware

CVE-2025-27022 — High (CVSS 7.5): A path traversal vulnerability of the WebGUI HTTP endpoint in Infinera G42 version R6.1.3 allows remote authenticated…
CVE-2025-27021 — High (CVSS 7.0): The misconfiguration in the sudoers configuration of the operating system in Infinera G42 version R6.1.3 allows low…
CVE-2025-27024 — Medium (CVSS 6.5): Unrestricted access to OS file system in SFTP service in Infinera G42 version R6.1.3 allows remote authenticated users…
CVE-2025-27023 — Medium (CVSS 6.5): Lack or insufficent input validation in WebGUI CLI web in Infinera G42 version R6.1.3 allows remote authenticated…

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