CVE-2026-11348

HAVELSAN · Liman MYS

Liman MYS is susceptible to an improper cryptographic signature verification vulnerability, potentially allowing unauthorized data manipulation.

Executive summary

An improper cryptographic signature verification vulnerability in HAVELSAN Liman MYS allows attackers to bypass security checks, posing a high risk to system integrity.

Vulnerability

The software suffers from an improper verification of cryptographic signatures (CWE-347). This unauthenticated flaw allows an attacker to potentially submit forged data or malicious payloads that the system will incorrectly treat as authentic.

Business impact

A CVSS score of 8.1 reflects the severe potential for total compromise of system security. Successful exploitation could allow attackers to bypass critical security controls, potentially leading to arbitrary code execution or the injection of malicious system configurations.

Remediation

Immediate Action: Upgrade to the latest release (release.master.1107 or higher) to ensure cryptographic signatures are properly validated.

Proactive Monitoring: Monitor system logs for unauthorized configuration changes or unexpected binary execution patterns that may indicate signature bypass attempts.

Compensating Controls: Ensure the application is deployed within a hardened network segment with strict access controls to limit potential attack vectors.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Given the critical role of cryptographic verification in system security, this vulnerability should be addressed with high priority. Organizations using Liman MYS must verify their current build and apply the necessary updates to prevent potential security bypasses.