Critical severity · published Dec 8, 2025
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…
9.8
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IM
Infinera Mtc-9 Firmware · Nokia
22.1.1.0275 before 23.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-27019
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-27019
Third Party Advisory
https://www.cvcn.gov.it/cvcn/cve/CVE-2025-27019
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