fail2ban Summary

Latest vulnerabilities published by fail2ban

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26 November 2025

Insecure Permissions in Fail2ban-Client Affects Security Measures by Its Vendor
CVE-2025-45311
Fail2banfail2ban-client8.8HIGH

16 July 2021

Possible RCE vulnerability in mailing action using mailutils (mail-whois)
CVE-2021-32749
Fail2banFail2ban6.1MEDIUM

10 June 2014

Local File Write Vulnerability in Fail2ban by Configurable Actions
CVE-2009-5023
Fail2banFail2ban

1 February 2014

Remote Code Execution Vulnerability in Fail2ban's Postfix Filter
CVE-2013-7176
Fail2banFail2ban
Remote IP Address Blocking Vulnerability in Fail2ban's Cyrus-IMAP Filter
CVE-2013-7177
Fail2banFail2ban

28 August 2013

Denial of Service Vulnerability in Fail2ban by Fail2ban Inc.
CVE-2013-2178
Fail2banFail2ban

31 December 2012

Input Variable Quoting Flaw in Fail2ban Affects Security Actions
CVE-2012-5642
Fail2banFail2ban

13 February 2009

Denial of Service Vulnerability in Fail2ban by Faill2ban
CVE-2009-0362
Fail2banFail2ban

14 August 2007

Denial of Service Vulnerability in fail2ban by Bastille Technologies
CVE-2007-4321
Fail2banFail2banEPSS 11%

6 December 2006

Denial of Service Vulnerability in fail2ban by CanInject
CVE-2006-6302
Fail2banFail2ban