CVE-2009-1902
The multipart processor in ModSecurity before 2.5.9 allows remote attackers to cause a denial of service (crash) via a multipart form…
- 5.0MediumCVSS base score
- 13.7%Exploitation in 30 daysEPSS · top 3.5% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
The multipart processor in ModSecurity before 2.5.9 allows remote attackers to cause a denial of service (crash) via a multipart form datapost request with a missing part header name, which triggers a NULL pointer dereference.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it. A reference of the record is tagged as an exploit.
Show the exploits2
Exploit-DB1 entry
- ModSecurity < 2.5.9 - Remote Denial of Service (Exploit-DB entry) (opens in a new tab)
EDB-ID 8241dos, multiplepublished 19 Mar 2009Verified
References tagged exploit1 reference
- 8241 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
Published
- 15 years later
· 15 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 13.7% · top 3.5% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Affected products
n/a
- affected n/a
References
14
- FEDORA-2009-2654 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- modsecurity-multipart-dos(49212) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 8241 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- GLSA-200907-02 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 34256 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 35687 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 52553 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 34311 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- FEDORA-2009-2686 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://sourceforge.net/project/shownotes.php?release_id=667542&group_id=68846 (opens in a new tab)x_refsource_CONFIRMx_transferred
- SUSE-SR:2009:011 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 20090319 [ISecAuditors Security Advisories] ModSecurity < 2.5.9 remote Denial of Service (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- ADV-2009-0703 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 34096 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2009-1897 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2009-1902)Record last updated .