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Vulnerability record · CVE-2025-27019 · published 8 December 2025

CVE-2025-27019: Nokia infinera mtc-9 firmware missing authentication for critical function vulnerability

Nokia · Infinera Mtc 9 Firmware

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.

9.8 CVSS 3.1 Critical EPSS 0.43% · top 65.7% CWE-306 · Missing authentication for critical function
9.8CVSS 3.1 base score
0.43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.cvcn.gov.it/cvcn/cve/CVE-2025-27019 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-27020Nokia infinera mtc-9 firmware missing authentication for critical function vulnerabilityImproper configuration of the SSH service in Infinera MTC-9 allows an unauthenticated attacker to execute arbitrary commands and access data on file …EPSS 0.50%8.6CVE-2025-26487Nokia infinera mtc-9 firmware server-side request forgery (ssrf) vulnerabilityServer-Side Request Forgery (SSRF) vulnerability in Infinera MTC-9 version allows remote unauthenticated users to gain access to other network resour…EPSS 0.35%7.5CVE-2025-26488Nokia infinera mtc-9 firmware improper input validation vulnerabilityImproper Input Validation vulnerability in Infinera MTC-9 allows remote unauthenticated users to crash the service and cause a reboot of the applianc…EPSS 0.38%6.5CVE-2025-26489Nokia infinera mtc-9 firmware improper input validation vulnerabilityImproper input validation in the Netconf service in Infinera MTC-9 allows remote authenticated users to crash the service and reboot the appliance, t…EPSS 0.33%8.8CVE-2026-67277MikroTik RouterOS btest missing authentication leaks kernel memory and crashes kernelRouterOS accepts a "related" btest connection before the primary session is authenticated, letting an unauthenticated client start an IPv4 UDP test. …KEVEPSS 1.6%analysed8.8CVE-2026-59822LiteLLM MCP endpoint auth bypass via OAuth2 passthrough fallbackLiteLLM's MCP Streamable HTTP endpoint, prior to 1.84.0, let an unauthenticated attacker send a fabricated Authorization header that triggered an OAu…KEVEPSS 0.84%analysed9.3CVE-2026-72529TrueConf Server missing authentication allows remote script executionTrueConf Server versions 5.3.X through 5.3.9, 5.4.X through 5.4.9, 5.5.X through 5.5.5, and earlier expose an undocumented function on port 4307/TCP …KEVEPSS 1.5%analysed9.8CVE-2026-46817Oracle E-Business Suite Payments missing authentication allows takeoverOracle Payments in Oracle E-Business Suite 12.2.3 through 12.2.15 contains an easily exploitable flaw in the File Transmission component. An unauthen…KEVEPSS 0.81%analysed

Source: NIST National Vulnerability Database (record CVE-2025-27019), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.