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CVE-2015-5343

33
FAUCET Score

CVE-2015-5343 is an integer overflow vulnerability in mod_dav_svn within Apache Subversion versions 1.7.x, 1.8.x before 1.8.15, and 1.9.x before 1.9.3, affecting Apache and Debian Linux distributions. This flaw allows remote authenticated users to trigger a denial of service (server crash or memory consumption) and potentially execute arbitrary code through a specially crafted skel-encoded request body, leading to an out-of-bounds read and heap-based buffer overflow. The vulnerability is rated as High severity (CVSS 7.6), indicating a low attack complexity and no user interaction required, with potential impacts on confidentiality, integrity, and availability. 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
>= 1.7.0, <= 1.7.20CPE matchmatch criteria
cpe:2.3:a:apache:subversion:*:*:*:*:*:*:*:*
>= 1.8.0, < 1.8.15CPE matchmatch criteria
cpe:2.3:a:apache:subversion:*:*:*:*:*:*:*:*
>= 1.9.0, < 1.9.3CPE matchmatch criteria
cpe:2.3:a:apache:subversion:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.6HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
4.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
30.22%
Probability of exploitation in next 30 days
EPSS Percentile
98.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.3022 is in the 97th percentile among its peer group of 17,822 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: subversion

Vendor Advisories (1)

redhatCVE-2015-5343Moderate

subversion: (mod_dav_svn) integer overflow when parsing skel-encoded request bodies

Dec 15, 2015

References

subversion.apache.org / security/CVE-2015-5343-advisory.txt
Vendor Advisory
debian.org / security/2015/dsa-3424
Third Party Advisory
securitytracker.com / id/1034470
Third Party AdvisoryVDB Entry
slackware.com / security/viewer.php
Third Party Advisory