How severe is CVE-2013-4558?

CVE-2013-4558 has a CVSS 2.0 base score of 3.5, rated low severity.

Is CVE-2013-4558 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4558?

CVE-2013-4558 primarily affects Apache Mod Dav Svn. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4558?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-4558 published?

CVE-2013-4558 was published on 2013-12-07 and last updated on 2026-06-16.

CVE-2013-4558

CVE-2013-4558 is a low-severity vulnerability in Apache Mod Dav Svn with a CVSS 2.0 base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Low (CVSS 2.0 base score 3.5)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Apache Mod Dav Svn
Published: 2013-12-07
Last modified: 2026-06-16

Description

The get_parent_resource function in repos.c in mod_dav_svn Apache HTTPD server module in Subversion 1.7.11 through 1.7.13 and 1.8.1 through 1.8.4, when built with assertions enabled and SVNAutoversioning is enabled, allows remote attackers to cause a denial of service (assertion failure and Apache process abort) via a non-canonical URL in a request, as demonstrated using a trailing /.

Frequently asked questions

What is CVE-2013-4558?: The get_parent_resource function in repos.c in mod_dav_svn Apache HTTPD server module in Subversion 1.7.11 through 1.7.13 and 1.8.1 through 1.8.4, when built with assertions enabled and SVNAutoversioning is enabled, allows remote attackers to cause a denial of service (assertion failure and Apache process abort) via a non-canonical URL in a request, as demonstrated using a trailing /.
How severe is CVE-2013-4558?: CVE-2013-4558 has a CVSS 2.0 base score of 3.5, rated low severity.
Is CVE-2013-4558 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4558?: CVE-2013-4558 primarily affects Apache Mod Dav Svn. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4558?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4558 published?: CVE-2013-4558 was published on 2013-12-07 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:a:apache:mod_dav_svn:-:*:*:*:*:*:*:*
cpe:2.3:a:apache:subversion:1.7.11:*:*:*:*:*:*:*
cpe:2.3:a:apache:subversion:1.7.12:*:*:*:*:*:*:*
cpe:2.3:a:apache:subversion:1.7.13:*:*:*:*:*:*:*
cpe:2.3:a:apache:subversion:1.8.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:subversion:1.8.2:*:*:*:*:*:*:*
cpe:2.3:a:apache:subversion:1.8.3:*:*:*:*:*:*:*
cpe:2.3:a:apache:subversion:1.8.4:*:*:*:*:*:*:*

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