CVE-2013-7176

Exp

config/filter.d/postfix.conf in the postfix filter in Fail2ban before 0.8.11 allows remote attackers to trigger the blocking of an arbitrary IP address via a crafted e-mail address that matches an improperly designed regular expression.

Published: 2014-02-01 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-7176 is rated High Exploit Risk (60.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.84%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2013-7176

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2013-7176

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.75% 0.84% +0.10%
2 2025-03-29 0.84% 0.75% -0.10%
3 2025-03-19 — 0.84% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-7176

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2013-7176

OS Trackers for CVE-2013-7176

vendor priority summary link
debian not yet assigned CVE-2013-7176 not yet assigned priority: Debian including 1 source packages (fail2ban), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-7176
gentoo normal CVE-2013-7176: 1 GLSA(s) (201406-03), 1 atom(s) (net-analyzer/fail2ban); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-7176
ubuntu medium CVE-2013-7176 medium priority: Ubuntu including 1 source packages (fail2ban), 6 status rows across 6 suites (lucid, precise, quantal, saucy, trusty, upstream): ignored 3, released 2, not-affected 1. https://ubuntu.com/security/CVE-2013-7176

Affected software / configurations for CVE-2013-7176

Vendor Product Version Raw CPE
fail2ban fail2ban <= 0.8.10 cpe:2.3:a:fail2ban:fail2ban:*:*:*:*:*:*:*:*
fail2ban fail2ban 0.1.0 cpe:2.3:a:fail2ban:fail2ban:0.1.0:*:*:*:*:*:*:*
fail2ban fail2ban 0.1.1 cpe:2.3:a:fail2ban:fail2ban:0.1.1:*:*:*:*:*:*:*
fail2ban fail2ban 0.1.2 cpe:2.3:a:fail2ban:fail2ban:0.1.2:*:*:*:*:*:*:*
fail2ban fail2ban 0.3.0 cpe:2.3:a:fail2ban:fail2ban:0.3.0:*:*:*:*:*:*:*
fail2ban fail2ban 0.3.1 cpe:2.3:a:fail2ban:fail2ban:0.3.1:*:*:*:*:*:*:*
fail2ban fail2ban 0.4.0 cpe:2.3:a:fail2ban:fail2ban:0.4.0:*:*:*:*:*:*:*
fail2ban fail2ban 0.4.1 cpe:2.3:a:fail2ban:fail2ban:0.4.1:*:*:*:*:*:*:*
fail2ban fail2ban 0.5.0 cpe:2.3:a:fail2ban:fail2ban:0.5.0:*:*:*:*:*:*:*
fail2ban fail2ban 0.5.1 cpe:2.3:a:fail2ban:fail2ban:0.5.1:*:*:*:*:*:*:*
fail2ban fail2ban 0.5.2 cpe:2.3:a:fail2ban:fail2ban:0.5.2:*:*:*:*:*:*:*
fail2ban fail2ban 0.5.3 cpe:2.3:a:fail2ban:fail2ban:0.5.3:*:*:*:*:*:*:*
fail2ban fail2ban 0.5.4 cpe:2.3:a:fail2ban:fail2ban:0.5.4:*:*:*:*:*:*:*
fail2ban fail2ban 0.5.5 cpe:2.3:a:fail2ban:fail2ban:0.5.5:*:*:*:*:*:*:*
fail2ban fail2ban 0.6.0 cpe:2.3:a:fail2ban:fail2ban:0.6.0:*:*:*:*:*:*:*
fail2ban fail2ban 0.6.1 cpe:2.3:a:fail2ban:fail2ban:0.6.1:*:*:*:*:*:*:*
fail2ban fail2ban 0.7.0 cpe:2.3:a:fail2ban:fail2ban:0.7.0:*:*:*:*:*:*:*
fail2ban fail2ban 0.7.1 cpe:2.3:a:fail2ban:fail2ban:0.7.1:*:*:*:*:*:*:*
fail2ban fail2ban 0.7.2 cpe:2.3:a:fail2ban:fail2ban:0.7.2:*:*:*:*:*:*:*
fail2ban fail2ban 0.7.3 cpe:2.3:a:fail2ban:fail2ban:0.7.3:*:*:*:*:*:*:*
fail2ban fail2ban 0.7.4 cpe:2.3:a:fail2ban:fail2ban:0.7.4:*:*:*:*:*:*:*
fail2ban fail2ban 0.7.5 cpe:2.3:a:fail2ban:fail2ban:0.7.5:*:*:*:*:*:*:*
fail2ban fail2ban 0.7.6 cpe:2.3:a:fail2ban:fail2ban:0.7.6:*:*:*:*:*:*:*
fail2ban fail2ban 0.7.7 cpe:2.3:a:fail2ban:fail2ban:0.7.7:*:*:*:*:*:*:*
fail2ban fail2ban 0.7.8 cpe:2.3:a:fail2ban:fail2ban:0.7.8:*:*:*:*:*:*:*
fail2ban fail2ban 0.7.9 cpe:2.3:a:fail2ban:fail2ban:0.7.9:*:*:*:*:*:*:*
fail2ban fail2ban 0.8.0 cpe:2.3:a:fail2ban:fail2ban:0.8.0:*:*:*:*:*:*:*
fail2ban fail2ban 0.8.1 cpe:2.3:a:fail2ban:fail2ban:0.8.1:*:*:*:*:*:*:*
fail2ban fail2ban 0.8.2 cpe:2.3:a:fail2ban:fail2ban:0.8.2:*:*:*:*:*:*:*
fail2ban fail2ban 0.8.3 cpe:2.3:a:fail2ban:fail2ban:0.8.3:*:*:*:*:*:*:*
fail2ban fail2ban 0.8.4 cpe:2.3:a:fail2ban:fail2ban:0.8.4:*:*:*:*:*:*:*
fail2ban fail2ban 0.8.5 cpe:2.3:a:fail2ban:fail2ban:0.8.5:*:*:*:*:*:*:*
fail2ban fail2ban 0.8.6 cpe:2.3:a:fail2ban:fail2ban:0.8.6:*:*:*:*:*:*:*
fail2ban fail2ban 0.8.7 cpe:2.3:a:fail2ban:fail2ban:0.8.7:*:*:*:*:*:*:*
fail2ban fail2ban 0.8.7.1 cpe:2.3:a:fail2ban:fail2ban:0.8.7.1:*:*:*:*:*:*:*
fail2ban fail2ban 0.8.8 cpe:2.3:a:fail2ban:fail2ban:0.8.8:*:*:*:*:*:*:*
fail2ban fail2ban 0.8.9 cpe:2.3:a:fail2ban:fail2ban:0.8.9:*:*:*:*:*:*:*

References for CVE-2013-7176

cvelogic Threat Intelligence