CVE-2009-4017
PHP before 5.2.12 and 5.3.x before 5.3.1 does not restrict the number of temporary files created when handling a multipart/form-data POST…
- 5.0MediumCVSS base score
- 12.0%Exploitation in 30 daysEPSS · top 3.8% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
PHP before 5.2.12 and 5.3.x before 5.3.1 does not restrict the number of temporary files created when handling a multipart/form-data POST request, which allows remote attackers to cause a denial of service (resource exhaustion), and makes it easier for remote attackers to exploit local file inclusion vulnerabilities, via multiple requests, related to lack of support for the max_file_uploads directive.
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.
Show the exploits1
Exploit-DB1 entry
- PHP < 5.3.1 - 'MultiPart/form-data' Denial of Service (Exploit-DB entry) (opens in a new tab)
EDB-ID 10242dos, phppublished 27 Nov 2009Verified
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 redhat
- 4 days later
· 4 days later
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)
- 12.0% · top 3.8% of all CVEs (11 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
25
- oval:org.mitre.oval:def:6667 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- http://www.php.net/releases/5_2_12.php (opens in a new tab)x_refsource_CONFIRMx_transferred
- 37482 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 40262 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [php-announce] 20091119 5.3.1 Release announcement (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- HPSBUX02543 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- MDVSA-2009:305 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- 37821 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- APPLE-SA-2010-03-29-1 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- 20091120 PHP "multipart/form-data" denial of service (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 41490 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- HPSBMA02568 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- http://www.acunetix.com/blog/websecuritynews/php-multipartform-data-denial-of-service/ (opens in a new tab)x_refsource_MISCx_transferred
- DSA-1940 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- http://www.php.net/ChangeLog-5.php (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20091120 Re: CVE request: php 5.3.1 update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://support.apple.com/kb/HT4077 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20091120 CVE request: php 5.3.1 update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://www.php.net/releases/5_3_1.php (opens in a new tab)x_refsource_CONFIRMx_transferred
- ADV-2009-3593 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- oval:org.mitre.oval:def:10483 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 41480 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20091120 PHP "multipart/form-data" denial of service (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- MDVSA-2009:303 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- php-multipart-formdata-dos(54455) (opens in a new tab)vdb-entryx_refsource_XFx_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-2009-3988 (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-2009-4017)Record last updated .