CVE-2025-27020

CRITICAL
Published Dec 8, 2025 Modified Dec 22, 2025 CWE-306

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.

CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-306 Missing Authentication

Affected Products

Vendor Product
nokia infinera_mtc-9_firmware
nokia infinera_mtc-9

References

Frequently Asked Questions

What is CVE-2025-27020? +
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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2025-27020? +
CVE-2025-27020 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.
What products are affected by CVE-2025-27020? +
CVE-2025-27020 affects products from nokia, specifically: infinera_mtc-9, infinera_mtc-9_firmware. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-27020? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

Don't wait for an exploit

Scan your website for vulnerabilities like CVE-2025-27020 — free, no signup required.

Start Free Scan