CVE-2025-27020

| EUVD-2025-201700 CRITICAL
2025-12-08 a6d3dc9e-0591-4a13-bce7-0f5b31ff6158
9.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 15, 2026 - 17:54 vuln.today
EUVD ID Assigned
Mar 15, 2026 - 17:54 euvd
EUVD-2025-201700
CVE Published
Dec 08, 2025 - 10:16 nvd
CRITICAL 9.8

Tags

Authentication Bypass Infinera Mtc 9 Firmware

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.

Analysis

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.

Technical Context

An authentication bypass vulnerability allows attackers to circumvent login mechanisms and gain unauthorized access without valid credentials. This vulnerability is classified as Missing Authentication for Critical Function (CWE-306).

Affected Products

Affected products: Nokia Infinera Mtc-9 Firmware

Remediation

Implement robust authentication mechanisms. Use multi-factor authentication. Review authentication logic for bypass conditions. Remove default credentials.

Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: +0.2
CVSS: +49
POC: 0

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CVE-2025-27020 vulnerability details – vuln.today
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