CVE-2017-9800

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://.

Published: 2017-08-11 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-9800 is rated High Risk (68.1/100): CVSS Critical severity, with high exploitation likelihood (EPSS 18.89%, 97th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-9800

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 67.27% 18.89% -48.38%
2 2026-05-29 59.07% 67.27% +8.20%
3 2026-04-23 — 59.07% —

Full EPSS history (60 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-9800

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2017-9800

OS Trackers for CVE-2017-9800

vendor priority summary link
alpine — CVE-2017-9800: 1 source package rows (subversion); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 0. https://security.alpinelinux.org/vuln/CVE-2017-9800
debian not yet assigned CVE-2017-9800 not yet assigned priority: Debian including 1 source packages (subversion), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-9800
gentoo normal CVE-2017-9800: 1 GLSA(s) (201709-09), 1 atom(s) (dev-vcs/subversion); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2017-9800
redhat high — https://access.redhat.com/security/cve/CVE-2017-9800
suse high CVE-2017-9800 severity important: SUSE including 92 source package names (libsvn_auth_gnome_keyring-1-0-1.10.6-1.12, libsvn_auth_gnome_keyring-1-0-1.14.1-1.11, …), 178 product×package rows across 43 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, … (43 product lines)): Fixed 114, Known Not Affected 64. https://www.suse.com/security/cve/CVE-2017-9800/
ubuntu medium CVE-2017-9800 medium priority: Ubuntu including 1 source packages (subversion), 5 status rows across 5 suites (artful, trusty, upstream, xenial, zesty): released 3, needs-triage 1, not-affected 1. https://ubuntu.com/security/CVE-2017-9800

Affected software / configurations for CVE-2017-9800

Vendor Product Version Raw CPE
apache subversion <= 1.8.18 cpe:2.3:a:apache:subversion:*:*:*:*:*:*:*:*
apache subversion 1.9.0 cpe:2.3:a:apache:subversion:1.9.0:*:*:*:*:*:*:*
apache subversion 1.9.1 cpe:2.3:a:apache:subversion:1.9.1:*:*:*:*:*:*:*
apache subversion 1.9.2 cpe:2.3:a:apache:subversion:1.9.2:*:*:*:*:*:*:*
apache subversion 1.9.3 cpe:2.3:a:apache:subversion:1.9.3:*:*:*:*:*:*:*
apache subversion 1.9.4 cpe:2.3:a:apache:subversion:1.9.4:*:*:*:*:*:*:*
apache subversion 1.9.5 cpe:2.3:a:apache:subversion:1.9.5:*:*:*:*:*:*:*
apache subversion 1.9.6 cpe:2.3:a:apache:subversion:1.9.6:*:*:*:*:*:*:*
apache subversion 1.10.0 cpe:2.3:a:apache:subversion:1.10.0:*:*:*:*:*:*:*
apache subversion 1.10.0 cpe:2.3:a:apache:subversion:1.10.0:alpha1:*:*:*:*:*:*
apache subversion 1.10.0 cpe:2.3:a:apache:subversion:1.10.0:alpha2:*:*:*:*:*:*
apache subversion 1.10.0 cpe:2.3:a:apache:subversion:1.10.0:alpha3:*:*:*:*:*:*

References for CVE-2017-9800

URL Tags
http://packetstormsecurity.com/files/143722/Apache-Subversion-Arbitrary-Code-Execution.html
http://www.debian.org/security/2017/dsa-3932
http://www.securityfocus.com/archive/1/540999/100/0/threaded
http://www.securityfocus.com/bid/100259 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039127 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:2480
https://confluence.atlassian.com/sourcetreekb/sourcetree-security-advisory-2017-08-11-933099891.html
https://lists.apache.org/thread.html/cb607dc2f13bab9769147759ddccb14a4f9d8e5cdcad5e99c0d03b63%40%3Cannounce.apache.org%3E
https://lists.apache.org/thread.html/d8cf53affd700dfce90bad4968fb8b1dfb69cf7c443052c70398ff76%40%3Ccommits.subversion.apache.org%3E
https://security.gentoo.org/glsa/201709-09
https://subversion.apache.org/security/CVE-2017-9800-advisory.txt Vendor Advisory
https://support.apple.com/HT208103
https://www.oracle.com/security-alerts/cpuoct2020.html
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