What it is
CVE-2011-1752 is an unauthenticated vulnerability affecting Apache Subversion. The mod_dav_svn module for the Apache HTTP Server, as distributed in Apache Subversion before 1.6.17, allows remote attackers to cause a...
Vulnerability report
Exploited in the wild
High confidence
Not in CISA KEV
CVE-2011-1752
Subversion Denial of Service
Apache / Subversion
- Severity
- CVSS 5.0 · Medium
- Confidence
- High
- Exploit status
- Exploited in the wild
- EPSS
- 8.5%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is high.
Who is affected?
Apache / Subversion.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
Subversion Denial of Service
The mod_dav_svn module for the Apache HTTP Server, as distributed in Apache Subversion before 1.6.17, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a request for a baselined WebDAV resource, as exploited in the wild in May 2011.
- Published
- 06 Jun 2011
- Exploitation Reported
- 06 Jun 2011
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- None
- User interaction
- —
Tags
apache
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2011-1752
- DSA-2251 debian.org · Vendor Advisory http://www.debian.org/security/2011/dsa-2251
- USN-1144-1 ubuntu.com · Vendor Advisory http://www.ubuntu.com/usn/USN-1144-1
- MDVSA-2011:106 mandriva.com · Vendor Advisory http://www.mandriva.com/security/advisories?name=MDVSA-2011:106
- RHSA-2011:0862 redhat.com · Vendor Advisory http://www.redhat.com/support/errata/RHSA-2011-0862.html
- FEDORA-2011-8341 lists.fedoraproject.org · Vendor Advisory http://lists.fedoraproject.org/pipermail/package-announce/2011-July/0...
- APPLE-SA-2012-02-01-1 lists.apple.com · Vendor Advisory http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html
- FEDORA-2011-8352 lists.fedoraproject.org · Vendor Advisory http://lists.fedoraproject.org/pipermail/package-announce/2011-June/0...
- RHSA-2011:0861 redhat.com · Vendor Advisory http://www.redhat.com/support/errata/RHSA-2011-0861.html
- 44849 secunia.com · Third-Party Advisory http://secunia.com/advisories/44849
- 44888 secunia.com · Third-Party Advisory http://secunia.com/advisories/44888
- 45162 secunia.com · Third-Party Advisory http://secunia.com/advisories/45162
- 44681 secunia.com · Third-Party Advisory http://secunia.com/advisories/44681
- 44879 secunia.com · Third-Party Advisory http://secunia.com/advisories/44879
- 44633 secunia.com · Third-Party Advisory http://secunia.com/advisories/44633
- 48091 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/48091
- oval:org.mitre.oval:def:18922 oval.cisecurity.org · VDB Entry https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.m...
- 1025617 securitytracker.com · VDB Entry http://www.securitytracker.com/id?1025617
- support.apple.com/kb/HT5130 support.apple.com · CVE Record http://support.apple.com/kb/HT5130
- subversion.apache.org/security/CVE-2011-1752-advisory.txt subversion.apache.org · CVE Record http://subversion.apache.org/security/CVE-2011-1752-advisory.txt
- bugzilla.redhat.com/show_bug.cgi bugzilla.redhat.com · CVE Record https://bugzilla.redhat.com/show_bug.cgi?id=709111
- svn.apache.org/repos/asf/subversion/tags/1.6.17/CHANGES svn.apache.org · CVE Record http://svn.apache.org/repos/asf/subversion/tags/1.6.17/CHANGES
Exploitation evidence
Why KEV Intelligence marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
CVE
Independent exploitation attestation added to the KEV Intelligence record.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2011-06-06 19:00 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- 0
- User-Agents
- 0
Raw values available in Pro and Enterprise.
Scanner coverage
No scanner integrations recorded yet.
Virtual patch status
No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Risk and context
Severity, weaknesses, and research context
CVSS v2.0
5.0
Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
8.5%
Weaknesses
Timeline
From disclosure to observed exploitation
-
Added to KEV Intelligence KEV Feed
High-confidence, third-party attested exploitation
-
CVE published
Vulnerability disclosed publicly
-
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2011-1752
Free JSON includes basic KEV fields{
"cve_id": "CVE-2011-1752",
"confidence": "High",
"cvss_score": 5.0,
"cvss_estimated": false,
"epss_score": 0.08483,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}Early warning alerts
Get alerts on high-impact exploitation
Receive curator-selected alerts when exploitation activity warrants attention. Each alert includes the evidence and context needed to decide what requires attention now.