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CVE-2011-1783

20
FAUCET Score

CVE-2011-1783 describes a denial-of-service vulnerability in the mod_dav_svn module of Apache Subversion versions 1.5.x and 1.6.x before 1.6.17, affecting products from vendors like Apache, Apple, and Debian. When the SVNPathAuthz short_circuit option is enabled, remote attackers can trigger an infinite loop and memory exhaustion by requesting data under opportunistic circumstances. This vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and partial availability impact, with no confidentiality or integrity impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.5.0, <= 1.5.8CPE matchmatch criteria
cpe:2.3:a:apache:subversion:*:*:*:*:*:*:*:*
>= 1.6.0, < 1.6.17CPE matchmatch criteria
cpe:2.3:a:apache:subversion:*:*:*:*:*:*:*:*
10.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*
10.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:*
11.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.74%
Probability of exploitation in next 30 days
EPSS Percentile
93.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0674 is in the 92nd percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: subversion-0:1.6.11-7.el5_6.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: subversion-0:1.6.11-2.el6_1.4
View patch

Vendor Advisories (1)

redhatCVE-2011-1783Moderate

(mod_dav_svn): DoS (excessive memory use) when configured to provide path-based access control

Jun 1, 2011

References

lists.apple.com / archives/security-announce/2012/Feb/msg00000.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2011-July/062211.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2011-June/061913.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
secunia.com / advisories/44633
Third Party Advisory
secunia.com / advisories/44681
Third Party Advisory
secunia.com / advisories/44849
Third Party Advisory
secunia.com / advisories/44888
Third Party Advisory
secunia.com / advisories/45162
Third Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18889
Third Party Advisory
subversion.apache.org / security/CVE-2011-1783-advisory.txt
Vendor Advisory
support.apple.com / kb/HT5130
Third Party Advisory
svn.apache.org / repos/asf/subversion/tags/1.6.17/CHANGES
Release NotesVendor Advisory
debian.org / security/2011/dsa-2251
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
redhat.com / support/errata/RHSA-2011-0862.html
Third Party Advisory
securityfocus.com / bid/48091
Third Party AdvisoryVDB Entry
securitytracker.com / id
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-1144-1
Third Party Advisory