Vulnerability · Published Dec 8, 2025 · Assigned by ENISA

CVE-2025-27019Remote shell service (RSH) in Infinera MTC-9

Critical 9.8

In plain English

A critical-severity missing authentication in MTC-9 from Infinera. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)0.4%top 63.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Infinera	MTC-9	R22.1.1.0275 – before R23.0

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://www.cvcn.gov.it/cvcn/cve/CVE-2025-27019 government-resource