CVE-2025-27019: Remote shell service (RSH) in Infinera MTC-9 version R22.1.1.0275 allows an attacker to utilize password-less user…
CVE-2025-27019 · Severity: critical · CVSS 9.8 · Published 2025-12-08
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.
No. Junglewise Threat Intelligence has no report of CVE-2025-27019 being exploited in the wild.
How severe is CVE-2025-27019?
Critical severity, with a CVSS score of 9.8, published 8 December 2025.
Which products and versions are affected?
Nokia Infinera Mtc-9, Nokia Infinera Mtc-9 Firmware. The advisory does not name versions.
Is there a fix for CVE-2025-27019?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-27019?
Check whether you run Nokia Infinera Mtc-9 or Nokia Infinera Mtc-9 Firmware. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.