CVE-2025-27020
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductNokia Infinera Mtc-9 Firmware
PublishedDec 8, 2025
First seenDec 8, 2025
Weakness typeCWE-306Missing authentication for critical function
How to fix
Update
- nokia infinera_mtc-9_firmware23.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nokia infinera_mtc-9_firmware | 22.1.1.0275 ≤ v < 23.0 | 23.0 |
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