CVE-2025-27020

Name: CVE-2025-27020
Creator: NVD / NIST
Published: 2025-12-08T10:16:01.427+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.48%

Last modified Jun 17, 2026

CVE-2025-27020 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Improper configuration of the SSH service in Infinera MTC-9 allows an unauthenticated attacker to execute arbitrary commands and access data on file system . This issue affects MTC-9: from R22.1.1.0275 before R23.0.. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

Improper configuration of the SSH service in Infinera MTC-9 allows an unauthenticated attacker to execute arbitrary commands and access data on file system . This issue affects MTC-9: from R22.1.1.0275 before R23.0.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.48%

37.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-306

Affected Software

Vendor	Product	Versions
Nokia	Infinera Mtc-9 Firmware	>= 22.1.1.0275, < 23.0

References

https://www.cvcn.gov.it/cvcn/cve/CVE-2025-27020Third Party Advisory

Timeline

Published: Dec 8, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-27020?

How severe is CVE-2025-27020?

CVE-2025-27020 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.

How do I fix CVE-2025-27020?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-27020?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST