CVE-2016-6296
Integer signedness error in the simplestring_addn function in simplestring.c in xmlrpc-epi through 0.54.2, as used in PHP before 5.5.38,…
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Integer signedness error in the simplestring_addn function in simplestring.c in xmlrpc-epi through 0.54.2, as used in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9, allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a long first argument to the PHP xmlrpc_encode_request function.
Timeline
ID reserved
By mitre
- 1 day later
· 1 day later
Published
- 8 years later
· 8 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 | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 6.3% · top 6.4% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
n/a
- affected n/a
References (14)
- 92095 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=e6c48213c22ed50b2b987b479fcc1ac709394caa (opens in a new tab)x_refsource_CONFIRMx_transferred
- APPLE-SA-2016-09-20 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- GLSA-201611-22 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- RHSA-2016:2750 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-3059-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://bugs.php.net/72606 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://php.net/ChangeLog-5.php (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1036430 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- DSA-3631 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- http://php.net/ChangeLog-7.php (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20160724 Re: Fwd: CVE for PHP 5.5.38 issues (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://support.apple.com/HT207170 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [debian-lts-announce] 20191126 [SECURITY] [DLA 2011-1] xmlrpc-epi security update (opens in a new tab)mailing-listx_refsource_MLISTx_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)
- 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-2016-6296)Record last updated .