Insecure Permissions in Fail2ban-Client Affects Security Measures by Its Vendor

CVE-2025-45311

What is CVE-2025-45311?

The fail2ban-client version 0.11.2 has a vulnerability that allows attackers with limited sudo privileges to execute arbitrary commands as the root user. This flaw poses significant security risks, as it compromises the integrity of the system by permitting unauthorized actions that generally require higher privileges. Mitigating this issue is critical for maintaining a secure environment while using fail2ban.

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