No exploitation reported

CVE-2017-9800

No exploitation reported by the sources we read.

Published2017-08-11
WeaknessCWE-20

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

A 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-alpha3 to run an arbitrary shell command. Such a URL could be generated by a malicious server, by a malicious user committing to a honest server (to attack another user of that server's repositories), or by a proxy server. The vulnerability affects all clients, including those that use file://, http://, and plain (untunneled) svn://.

Timeline

dates in UTC

2017-08-1121:29CVE 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-2017-9800?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-9800?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
1.8	≤ 1.8.18	no fix published	NVD
1.9	= 1.9.0	no fix published	NVD
1.9	= 1.9.1	no fix published	NVD
1.9	= 1.9.2	no fix published	NVD
1.9	= 1.9.3	no fix published	NVD
1.9	= 1.9.4	no fix published	NVD
1.9	= 1.9.5	no fix published	NVD
1.9	= 1.9.6	no fix published	NVD
1.10	= 1.10.0	no fix published	NVD

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

Fix

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 3.09.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
NVDweakness (CWE)CWE-20read 2026-10-23
FIRST EPSSEPSS score18.9 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2017-08-11
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-9800?

Is CVE-2017-9800 actively exploited?

Active exploitation of CVE-2017-9800 has not been confirmed. Its EPSS score was 18.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-9800?

CVE-2017-9800 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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