The ModSecurity module before 2.7.4 for the Apache HTTP Server allows remote attackers to cause a denial of service (NULL pointer dereference, process crash, and disk consumption) via a POST request with a large body and a crafted Content-Type header.
CVE-2013-2765
- No confirmed exploitation signals yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 96.0%
- KEV
- Not listed
Published
July 15, 2013
Last Modified
April 29, 2026
References (22)
- cve@mitrehttp://archives.neohapsis.com/archives/bugtraq/2013-05/0125.html
- cve@mitrehttp://lists.opensuse.org/opensuse-updates/2013-08/msg00020.html
- cve@mitrehttp://lists.opensuse.org/opensuse-updates/2013-08/msg00025.html
- cve@mitrehttp://lists.opensuse.org/opensuse-updates/2013-08/msg00031.html
- cve@mitrehttp://sourceforge.net/mailarchive/message.php?msg_id=30900019
- cve@mitrehttp://www.modsecurity.org/
- cve@mitrehttp://www.shookalabs.com/
- cve@mitrehttps://bugzilla.redhat.com/show_bug.cgi?id=967615
- cve@mitrehttps://github.com/SpiderLabs/ModSecurity/commit/0840b13612a0b7ef1ce7441cf811dcfc6b463fba
- cve@mitrehttps://github.com/shookalabs/exploits/blob/master/modsecurity_cve_2013_2765_check.py
- cve@mitrehttps://raw.github.com/SpiderLabs/ModSecurity/master/CHANGES
- af854a3a-2127-422b-91ae-364da2661108http://archives.neohapsis.com/archives/bugtraq/2013-05/0125.html
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2013-08/msg00020.html
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2013-08/msg00025.html
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2013-08/msg00031.html
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 34× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 02:19 UTCEPSS rescore
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- 2026-07-05 07:21 UTCOSV refresh
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- 2026-06-16 18:39 UTCOSV refresh
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- 2026-06-16 17:49 UTCEPSS rescore
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- 2026-05-28 23:19 UTCEG score recompute
- 2026-05-28 23:19 UTCGHSA enrichment
- 2026-05-28 13:42 UTCEPSS rescore
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- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-25852First seen May 31, 2013
ModSecurity - Remote Null Pointer Dereference
Open source ↗
Related CVEs(same CWE)
Frequently asked(4)
What is CVE-2013-2765?
When was CVE-2013-2765 disclosed?
Is CVE-2013-2765 actively exploited?
How do I remediate CVE-2013-2765?
Dependency Blast Radius
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