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CVE-2013-1847· NVD / CVE Program· CNA redhat

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 den

Noroxi assessment

Priority: Monitor (action score 35/100)

  • Public proof-of-concept code exists (Exploit-DB); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 51.4% (FIRST EPSS); higher than 98.9% of all records.
  • No special conditions are required; it is repeatable.
  • Fixed version: subversion (Debian:12) 1.7.9-1; subversion (Debian:6.0) 1.6.12dfsg-7+deb6u2; subversion (openSUSE:Tumbleweed) 1.9.5-1.1.

Low priority for now. Upgrade to subversion (Debian:12) 1.7.9-1; subversion (Debian:6.0) 1.6.12dfsg-7+deb6u2; subversion (openSUSE:Tumbleweed) 1.9.5-1.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 5.0 · v2.0—Proof of concept Fix available
Published
May 2, 2013
Updated
Jun 16, 2026
EPSS
51.4% · 98th percentile
CWE
—

Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
20 / 40 · 5.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
15 / 30 · 51.4%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2013-1847

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
apachesubversion

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • apache subversion1.6.0
  • apache subversion1.6.1
  • apache subversion1.6.10
  • apache subversion1.6.11
  • apache subversion1.6.12
  • apache subversion1.6.13
  • apache subversion1.6.14
  • apache subversion1.6.15
  • apache subversion1.6.16
  • apache subversion1.6.17
  • apache subversion1.6.18
  • apache subversion1.6.19
  • apache subversion1.6.2
  • apache subversion1.6.20
  • apache subversion1.6.3
  • apache subversion1.6.4
  • apache subversion1.6.5
  • apache subversion1.6.6
  • apache subversion1.6.7
  • apache subversion1.6.8

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12subversionbefore 1.7.9-11.7.9-1
Debian:6.0subversionbefore 1.6.12dfsg-7+deb6u21.6.12dfsg-7+deb6u2
openSUSE:Tumbleweedsubversionbefore 1.9.5-1.11.9.5-1.1
Red Hat:enterprise_linux:5::servermod_dav_svnbefore 0:1.6.11-11.el5_90:1.6.11-11.el5_9
Red Hat:enterprise_linux:5::serversubversionbefore 0:1.6.11-11.el5_90:1.6.11-11.el5_9
Red Hat:enterprise_linux:5::serversubversion-debuginfobefore 0:1.6.11-11.el5_90:1.6.11-11.el5_9
Red Hat:enterprise_linux:5::serversubversion-develbefore 0:1.6.11-11.el5_90:1.6.11-11.el5_9
Red Hat:enterprise_linux:5::serversubversion-javahlbefore 0:1.6.11-11.el5_90:1.6.11-11.el5_9
Red Hat:enterprise_linux:5::serversubversion-perlbefore 0:1.6.11-11.el5_90:1.6.11-11.el5_9
Red Hat:enterprise_linux:5::serversubversion-rubybefore 0:1.6.11-11.el5_90:1.6.11-11.el5_9
Red Hat:enterprise_linux:6::clientmod_dav_svnbefore 0:1.6.11-9.el6_40:1.6.11-9.el6_4
Red Hat:enterprise_linux:6::clientsubversionbefore 0:1.6.11-9.el6_40:1.6.11-9.el6_4
Red Hat:enterprise_linux:6::clientsubversion-debuginfobefore 0:1.6.11-9.el6_40:1.6.11-9.el6_4
Red Hat:enterprise_linux:6::clientsubversion-develbefore 0:1.6.11-9.el6_40:1.6.11-9.el6_4
Red Hat:enterprise_linux:6::clientsubversion-gnomebefore 0:1.6.11-9.el6_40:1.6.11-9.el6_4
Red Hat:enterprise_linux:6::clientsubversion-javahlbefore 0:1.6.11-9.el6_40:1.6.11-9.el6_4
Red Hat:enterprise_linux:6::clientsubversion-kdebefore 0:1.6.11-9.el6_40:1.6.11-9.el6_4
Red Hat:enterprise_linux:6::clientsubversion-perlbefore 0:1.6.11-9.el6_40:1.6.11-9.el6_4
Red Hat:enterprise_linux:6::clientsubversion-rubybefore 0:1.6.11-9.el6_40:1.6.11-9.el6_4
Red Hat:enterprise_linux:6::clientsubversion-svn2clbefore 0:1.6.11-9.el6_40:1.6.11-9.el6_4

Same product

apache: all records

Other highest-scoring records for the same primary product.

  • CVE-2015-5259Integer overflow in the read_string function in libsvn_ra_svn/marshal.c in Apache Subversion 1.9.x before 1.9.3 allows remote attackers to e
    51Plan
  • CVE-2018-11803Subversion's mod_dav_svn Apache HTTPD module versions 1.11.0 and 1.10.0 to 1.10.3 will crash after dereferencing an uninitialized pointer if
    48Plan
  • CVE-2017-9800A maliciously constructed svn+ssh:// URL would cause Subversion clients before 1.8.19, 1.9.x before 1.9.7, and 1.10.0.x through 1.10.0-alpha
    45Plan
  • CVE-2020-17525Remote unauthenticated denial-of-service in Subversion mod_authz_svn
    42Plan
  • CVE-2015-5343Integer overflow in util.c in mod_dav_svn in Apache Subversion 1.7.x, 1.8.x before 1.8.15, and 1.9.x before 1.9.3 allows remote authenticate
    39Monitor
  • CVE-2013-2088contrib/hook-scripts/svn-keyword-check.pl in Subversion before 1.6.23 allows remote authenticated users with commit permissions to execute a
    37Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:subversion1.7.9-1 · Debian:12Package registry (OSV)
opensuse:subversion1.9.5-1.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:mod_dav_svn0:1.6.11-11.el5_9 · Red Hat:enterprise_linux:5::serverPackage registry (OSV)
red hat:subversion0:1.6.11-11.el5_9 · Red Hat:enterprise_linux:5::serverPackage registry (OSV)
red hat:subversion-debuginfo0:1.6.11-11.el5_9 · Red Hat:enterprise_linux:5::serverPackage registry (OSV)
red hat:subversion-devel0:1.6.11-11.el5_9 · Red Hat:enterprise_linux:5::serverPackage registry (OSV)
red hat:subversion-gnome0:1.6.11-9.el6_4 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:subversion-javahl0:1.6.11-11.el5_9 · Red Hat:enterprise_linux:5::serverPackage registry (OSV)
red hat:subversion-kde0:1.6.11-9.el6_4 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:subversion-perl0:1.6.11-11.el5_9 · Red Hat:enterprise_linux:5::serverPackage registry (OSV)
red hat:subversion-ruby0:1.6.11-11.el5_9 · Red Hat:enterprise_linux:5::serverPackage registry (OSV)
red hat:subversion-svn2cl0:1.6.11-9.el6_4 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Exploit-DB entry ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entrydos2013-04-05

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. First PoC-27 d
  2. Published
  3. TodayOct 16, 2026+4915 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
P · the service can be disrupted
Attack complexity
Low
Confidentiality impact
None
Integrity impact
None
Availability impact
P

Weakness class (CWE)

—

CVSS vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (9 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records