CVE-2025-27019

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

Description

Remote shell service (RSH) in Infinera MTC-9 version R22.1.1.0275 allows an attacker to utilize password-less user accounts and obtain system access by activating a reverse shell.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-2025-27019? +
Remote shell service (RSH) in Infinera MTC-9 version R22.1.1.0275 allows an attacker to utilize password-less user accounts and obtain system access by activating a reverse shell.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-2025-27019? +
CVE-2025-27019 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-2025-27019? +
CVE-2025-27019 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-2025-27019? +
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.

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