No exploitation reportedFix available

CVE-2015-5343

Q: Is CVE-2015-5343 actively exploited?

Active exploitation of CVE-2015-5343 has not been confirmed. Its EPSS score was 30.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2015-5343?

CVE-2015-5343 has a CVSS v3 base score of 7.6 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H.

No exploitation reported by the sources we read.

Published2016-04-14
Fixed in1.9.3 · 1.8.15
WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Integer 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 authenticated users to cause a denial of service (subversion server crash or memory consumption) and possibly execute arbitrary code via a skel-encoded request body, which triggers an out-of-bounds read and heap-based buffer overflow.

Timeline

dates in UTC

2016-04-1414:59CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2015-5343?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2015-5343?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Apache subversion

Branch	Affected	Fixed in	Source
1.9	≥ 1.9.0, < 1.9.3	1.9.3	NVD
1.8	≥ 1.8.0, < 1.8.15	1.8.15	NVD
1.7	≥ 1.7.0, ≤ 1.7.20	no fix published	NVD

Debian debian linux

Branch	Affected	Fixed in	Source
8.0	= 8.0	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Apache subversion to 1.9.3 · 1.8.15

Advisories and patches

subversion.apache.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.07.6read 2026-10-23
NVDCVSS 2.08read 2026-10-23
NVDweakness (CWE)CWE-119read 2026-10-23
FIRST EPSSEPSS score30.2 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Published: 2016-04-14
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2015-5343?

Is CVE-2015-5343 actively exploited?

Active exploitation of CVE-2015-5343 has not been confirmed. Its EPSS score was 30.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2015-5343?

CVE-2015-5343 has a CVSS v3 base score of 7.6 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H.

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