CVE-2025-27020: Improper configuration of the SSH service in Infinera MTC-9 allows an unauthenticated attacker to execute arbitrary…
CVE-2025-27020 · Severity: critical · CVSS 9.8 · Published 2025-12-08
Improper configuration of the SSH service in Infinera MTC-9 allows an unauthenticated attacker to execute arbitrary commands and access data on file system
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This issue affects MTC-9: from R22.1.1.0275 before R23.0.
No. Junglewise Threat Intelligence has no report of CVE-2025-27020 being exploited in the wild.
How severe is CVE-2025-27020?
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-2025-27020?
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-2025-27020?
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.