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CVE-2016-6290
ext/session/session.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 does not properly maintain a certain hash data…
Critical9.8EPSS 5.5%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
ext/session/session.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 does not properly maintain a certain hash data structure, which allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via vectors related to session deserialization.
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)
- 5.5% · top 7.2% of all CVEs (3 Nov 2026)
Loading the EPSS history…
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 (12)
- https://bugs.php.net/72562 (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
- 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://git.php.net/?p=php-src.git%3Ba=commit%3Bh=3798eb6fd5dddb211b01d41495072fd9858d4e32 (opens in a new tab)x_refsource_CONFIRMx_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
- 92097 (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)
- 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://trackcve.app/cve/CVE-2016-6290)Record last updated .