What is CVE-2022-24070?

CVE-2022-24070 is a high-severity vulnerability in Apache Subversion, classified under Use After Free. CVSS score: 7.5/10. Published 2022-04-12.

How severe is CVE-2022-24070?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-24070 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Use After Free in Apache Subversion

CVE-2022-24070

Subversion's mod_dav_svn is vulnerable to memory corruption. While looking up path-based authorization rules, mod_dav_svn servers may attempt to use memory which has already been freed. Affected Subversion mod_dav_svn servers 1.10.0 through 1.14.1 (inclusive). Servers that do not use mod_dav_svn are not affected.

Vulnerability class: Use-After-Free

Published 2022-04-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.095 (95.4th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 95.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.095 · newest: 0.095 · change: 0.000

Affected products

Apache Subversion
Apache Software Foundation Subversion — versions 1.10.0 to 1.14.1
Apple macOS
Debian Linux — versions 10.0, 11.0
Fedoraproject Fedora — versions 35, 36

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

issues.apache.org/jira/browse/SVN-4880 (Issue Tracking, Vendor Advisory)
bz.apache.org/bugzilla/show_bug.cgi (Issue Tracking, Vendor Advisory)
cwiki.apache.org/confluence/display/HTTPD/ModuleLife (Vendor Advisory)
www.debian.org/security/2022/dsa-5119 (vendor-advisory, Third Party Advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
support.apple.com/kb/HT213345 (Third Party Advisory)
seclists.org/fulldisclosure/2022/Jul/18 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2022-24070?: CVE-2022-24070 is a high-severity vulnerability in Apache Subversion, classified under Use After Free. CVSS score: 7.5/10. Published 2022-04-12.
How severe is CVE-2022-24070?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-24070 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.