9.8
CRITICAL CVSS 3.1
CVE-2025-27020
Improper configuration of SSH service in Infinera MTC-9
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.

INFO

Published Date :

Dec. 8, 2025, 10:16 a.m.

Last Modified :

Dec. 8, 2025, 10:16 a.m.

Remotely Exploit :

Yes !

Source :

a6d3dc9e-0591-4a13-bce7-0f5b31ff6158
Affected Products

The following products are affected by CVE-2025-27020 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL a6d3dc9e-0591-4a13-bce7-0f5b31ff6158
CVSS 3.1 CRITICAL MITRE-CVE
Solution
Update SSH service configuration on MTC-9 to prevent command execution and unauthorized file access.
  • Apply the latest vendor-provided updates for MTC-9.
  • Review and secure SSH service configuration.
  • Remove unnecessary user privileges.
  • Implement strict access controls.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-27020.

URL Resource
https://www.cvcn.gov.it/cvcn/cve/CVE-2025-27020
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-27020 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-27020 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2025-27020 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by a6d3dc9e-0591-4a13-bce7-0f5b31ff6158

    Dec. 08, 2025

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-306
    Added Reference https://www.cvcn.gov.it/cvcn/cve/CVE-2025-27020
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact