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CVE-2013-4558

15
FAUCET Score

CVE-2013-4558 describes a denial-of-service vulnerability affecting the mod_dav_svn module in Apache HTTPD when used with Subversion versions 1.7.11-1.7.13 and 1.8.1-1.8.4, specifically when built with assertions enabled and SVNAutoversioning is active. A remote, authenticated attacker can trigger an assertion failure and Apache process abort by sending a non-canonical URL, such as one with a trailing slash. This vulnerability has a CVSS score of 3.5, indicating a medium attack complexity and partial availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:apache:mod_dav_svn:-:*:*:*:*:*:*:*
1.7.11CPE matchmatch criteria
cpe:2.3:a:apache:subversion:1.7.11:*:*:*:*:*:*:*
1.7.12CPE matchmatch criteria
cpe:2.3:a:apache:subversion:1.7.12:*:*:*:*:*:*:*
1.7.13CPE matchmatch criteria
cpe:2.3:a:apache:subversion:1.7.13:*:*:*:*:*:*:*
1.8.1CPE matchmatch criteria
cpe:2.3:a:apache:subversion:1.8.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.5LOW

AV:N/AC:M/Au:S/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
6.8
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.88%
Probability of exploitation in next 30 days
EPSS Percentile
92.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0588 is in the 98th percentile among its peer group of 1,636 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2013-4558Moderate

subversion: mod_dav_svn assertion when handling certain requests with autoversioning enabled

Nov 25, 2013

References

lists.opensuse.org / opensuse-updates/2013-12/msg00029.html
lists.opensuse.org / opensuse-updates/2013-12/msg00048.html
osvdb.org / 100363
bugzilla.redhat.com / show_bug.cgi
github.com / apache/subversion/commit/2c77c43e4255555f3b79f761f0d141393a3856cc
github.com / apache/subversion/commit/647e3f8365a74831bb915f63793b63e31fae062d
subversion.apache.org / security/CVE-2013-4558-advisory.txt
PatchVendor Advisory