CVE-2013-4365

Heap-based buffer overflow in the fcgid_header_bucket_read function in fcgid_bucket.c in the mod_fcgid module before 2.3.9 for the Apache HTTP Server allows remote attackers to have an unspecified impact via unknown vectors.

Published: 2013-10-17 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-4365 is rated High Risk (68.5/100): CVSS High severity, with high exploitation likelihood (EPSS 13.14%, 96th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +6.49% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2013-4365

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 2026-06-15 6.66% 13.14% +6.49%
2 2025-12-28 8.24% 6.66% -1.59%
3 2025-12-27 — 8.24% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4365

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/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:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2013-4365

OS Trackers for CVE-2013-4365

vendor priority summary link
debian not yet assigned CVE-2013-4365 not yet assigned priority: Debian including 1 source packages (libapache2-mod-fcgid), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-4365
gentoo normal CVE-2013-4365: 1 GLSA(s) (201402-09), 1 atom(s) (www-apache/mod_fcgid); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-4365
redhat high — https://access.redhat.com/security/cve/CVE-2013-4365
ubuntu medium CVE-2013-4365 medium priority: Ubuntu including 1 source packages (libapache2-mod-fcgid), 6 status rows across 6 suites (lucid, precise, quantal, raring, saucy, upstream): released 5, ignored 1. https://ubuntu.com/security/CVE-2013-4365

Affected software / configurations for CVE-2013-4365

Vendor Product Version Raw CPE
apache mod_fcgid < 2.3.9 cpe:2.3:a:apache:mod_fcgid:*:*:*:*:*:*:*:*
debian debian_linux 6.0 cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
suse cloud 1.0 cpe:2.3:a:suse:cloud:1.0:*:*:*:*:*:*:*
suse cloud 2.0 cpe:2.3:a:suse:cloud:2.0:*:*:*:*:*:*:*
opensuse opensuse 11.4 cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:*
opensuse opensuse 12.2 cpe:2.3:o:opensuse:opensuse:12.2:*:*:*:*:*:*:*
opensuse opensuse 12.3 cpe:2.3:o:opensuse:opensuse:12.3:*:*:*:*:*:*:*
suse linux_enterprise_software_development_kit 11 cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp2:*:*:*:*:*:*
suse linux_enterprise_software_development_kit 11 cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp3:*:*:*:*:*:*

References for CVE-2013-4365

cvelogic Threat Intelligence