CVE-2013-4131

The mod_dav_svn Apache HTTPD server module in Subversion 1.7.0 through 1.7.10 and 1.8.x before 1.8.1 allows remote authenticated users to cause a denial of service (assertion failure or out-of-bounds read) via a certain (1) COPY, (2) DELETE, or (3) MOVE request against a revision root.

Published: 2013-07-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2013-4131 is rated Moderate Risk (51.2/100): CVSS Medium severity, with high exploitation likelihood (EPSS 4.38%, 90th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +3.72% over the last day, indicating growing attacker interest. Mandatory action: 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-2013-4131

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 0.66% 4.38% +3.72%
2 2026-02-01 0.90% 0.66% -0.24%
3 2025-12-28 0.90%

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4131

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/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:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
8.0 2.9 [email protected]

Weakness enumeration for CVE-2013-4131

OS Trackers for CVE-2013-4131

vendor priority summary link
debian not yet assigned CVE-2013-4131 not yet assigned priority: Debian including 1 source packages (subversion), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-4131
gentoo low CVE-2013-4131: 1 GLSA(s) (201309-11), 1 atom(s) (dev-vcs/subversion); latest impact low. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-4131
redhat medium https://access.redhat.com/security/cve/CVE-2013-4131
ubuntu medium CVE-2013-4131 medium priority: Ubuntu including 1 source packages (subversion), 7 status rows across 7 suites (lucid, precise, quantal, raring, saucy, trusty, upstream): ignored 4, DNE 1, not-affected 1, released 1. https://ubuntu.com/security/CVE-2013-4131

Affected software / configurations for CVE-2013-4131

Vendor Product Version Raw CPE
apache subversion 1.7.0 cpe:2.3:a:apache:subversion:1.7.0:*:*:*:*:*:*:*
apache subversion 1.7.1 cpe:2.3:a:apache:subversion:1.7.1:*:*:*:*:*:*:*
apache subversion 1.7.2 cpe:2.3:a:apache:subversion:1.7.2:*:*:*:*:*:*:*
apache subversion 1.7.3 cpe:2.3:a:apache:subversion:1.7.3:*:*:*:*:*:*:*
apache subversion 1.7.4 cpe:2.3:a:apache:subversion:1.7.4:*:*:*:*:*:*:*
apache subversion 1.7.5 cpe:2.3:a:apache:subversion:1.7.5:*:*:*:*:*:*:*
apache subversion 1.7.6 cpe:2.3:a:apache:subversion:1.7.6:*:*:*:*:*:*:*
apache subversion 1.7.7 cpe:2.3:a:apache:subversion:1.7.7:*:*:*:*:*:*:*
apache subversion 1.7.8 cpe:2.3:a:apache:subversion:1.7.8:*:*:*:*:*:*:*
apache subversion 1.7.9 cpe:2.3:a:apache:subversion:1.7.9:*:*:*:*:*:*:*
apache subversion 1.7.10 cpe:2.3:a:apache:subversion:1.7.10:*:*:*:*:*:*:*
apache subversion 1.8.0 cpe:2.3:a:apache:subversion:1.8.0:*:*:*:*:*:*:*

References for CVE-2013-4131

cvelogic Threat Intelligence