CVE-2013-1847

Exp

The mod_dav_svn Apache HTTPD server module in Subversion 1.6.0 through 1.6.20 and 1.7.0 through 1.7.8 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via an anonymous LOCK for a URL that does not exist.

Published: 2013-05-02 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-1847 is rated High Exploit Risk (74.6/100): CVSS Medium severity, with high exploitation likelihood (EPSS 51.44%, 99th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +30.62% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2013-1847

EDB-ID Source Kind Published Link
38421 exploit_db edb 2013-04-05 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2013-1847

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 20.82% 51.44% +30.62%
2 2026-05-25 44.30% 20.82% -23.48%
3 2025-12-28 — 44.30% —

Full EPSS history (21 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-1847

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/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:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2013-1847

OS Trackers for CVE-2013-1847

vendor priority summary link
debian not yet assigned CVE-2013-1847 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-2013-1847
gentoo low CVE-2013-1847: 1 GLSA(s) (201309-11), 1 atom(s) (dev-vcs/subversion); latest impact low. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-1847
redhat low — https://access.redhat.com/security/cve/CVE-2013-1847
ubuntu medium CVE-2013-1847 medium priority: Ubuntu including 1 source packages (subversion), 7 status rows across 7 suites (hardy, lucid, oneiric, precise, quantal, raring, upstream): released 4, ignored 3. https://ubuntu.com/security/CVE-2013-1847

NVD evaluator notes for CVE-2013-1847

Comment: Per: http://cwe.mitre.org/data/definitions/476.html 'CWE-476: NULL Pointer Dereference'

Affected software / configurations for CVE-2013-1847

Vendor Product Version Raw CPE
apache subversion 1.6.0 cpe:2.3:a:apache:subversion:1.6.0:*:*:*:*:*:*:*
apache subversion 1.6.1 cpe:2.3:a:apache:subversion:1.6.1:*:*:*:*:*:*:*
apache subversion 1.6.2 cpe:2.3:a:apache:subversion:1.6.2:*:*:*:*:*:*:*
apache subversion 1.6.3 cpe:2.3:a:apache:subversion:1.6.3:*:*:*:*:*:*:*
apache subversion 1.6.4 cpe:2.3:a:apache:subversion:1.6.4:*:*:*:*:*:*:*
apache subversion 1.6.5 cpe:2.3:a:apache:subversion:1.6.5:*:*:*:*:*:*:*
apache subversion 1.6.6 cpe:2.3:a:apache:subversion:1.6.6:*:*:*:*:*:*:*
apache subversion 1.6.7 cpe:2.3:a:apache:subversion:1.6.7:*:*:*:*:*:*:*
apache subversion 1.6.8 cpe:2.3:a:apache:subversion:1.6.8:*:*:*:*:*:*:*
apache subversion 1.6.9 cpe:2.3:a:apache:subversion:1.6.9:*:*:*:*:*:*:*
apache subversion 1.6.10 cpe:2.3:a:apache:subversion:1.6.10:*:*:*:*:*:*:*
apache subversion 1.6.11 cpe:2.3:a:apache:subversion:1.6.11:*:*:*:*:*:*:*
apache subversion 1.6.12 cpe:2.3:a:apache:subversion:1.6.12:*:*:*:*:*:*:*
apache subversion 1.6.13 cpe:2.3:a:apache:subversion:1.6.13:*:*:*:*:*:*:*
apache subversion 1.6.14 cpe:2.3:a:apache:subversion:1.6.14:*:*:*:*:*:*:*
apache subversion 1.6.15 cpe:2.3:a:apache:subversion:1.6.15:*:*:*:*:*:*:*
apache subversion 1.6.16 cpe:2.3:a:apache:subversion:1.6.16:*:*:*:*:*:*:*
apache subversion 1.6.17 cpe:2.3:a:apache:subversion:1.6.17:*:*:*:*:*:*:*
apache subversion 1.6.18 cpe:2.3:a:apache:subversion:1.6.18:*:*:*:*:*:*:*
apache subversion 1.6.19 cpe:2.3:a:apache:subversion:1.6.19:*:*:*:*:*:*:*
apache subversion 1.6.20 cpe:2.3:a:apache:subversion:1.6.20:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*

References for CVE-2013-1847

URL Tags
http://lists.opensuse.org/opensuse-updates/2013-04/msg00095.html
http://lists.opensuse.org/opensuse-updates/2013-06/msg00069.html
http://mail-archives.apache.org/mod_mbox/subversion-announce/201304.mbox/%3CCADkdwvRoyVrZV12tgC0FMGrc6%2BMisd3qTcZ%2BDdpFGgTahkgAkQ%40mail.gmail.com%3E
http://mail-archives.apache.org/mod_mbox/subversion-announce/201304.mbox/%3CCADkdwvSTMLbn4q_KM3Ph2UOeSiPGhEK4%3DSvwEjaHW_GUGkYWPQ%40mail.gmail.com%3E
http://rhn.redhat.com/errata/RHSA-2013-0737.html
http://subversion.apache.org/security/CVE-2013-1847-advisory.txt Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2013:153
http://www.ubuntu.com/usn/USN-1893-1
https://bugzilla.redhat.com/show_bug.cgi?id=929090
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18538
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