CVE-2025-11546: nec corporation clusterpro x for linux (expresscluster x for linux) OS Command Injection

Vulnerability summary

CVE-2025-11546 is a critical (CVSS 9.3) OS Command Injection vulnerability in nec corporation clusterpro x for linux (expresscluster x for linux). EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 29% of scored vulnerabilities.

Timeline

1. 07-11-2025
   PublishedVulnerability first disclosed.
2. 07-11-2025
   Last modifiedVulnerability information updated.

Description

CLUSTERPRO X for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2 and EXPRESSCLUSTER X for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2, CLUSTERPRO X SingleServerSafe for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2, EXPRESSCLUSTER X SingleServerSafe for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2 allows an attacker sends specially crafted network packets to the product, arbitrary OS commands may be executed without authentication.

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.