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CVE-2016-9936
The unserialize implementation in ext/standard/var.c in PHP 7.x before 7.0.14 allows remote attackers to cause a denial of service…
Critical9.8EPSS 4.3%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The unserialize implementation in ext/standard/var.c in PHP 7.x before 7.0.14 allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via crafted serialized data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-6834.
Timeline
ID reserved
By mitre
- 23 days later
· 23 days 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)
- 4.3% · top 8.9% of all CVEs (8 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 (7)
- [oss-security] 20161212 CVE assignment for PHP 5.6.28, 5.6.29, 7.0.13, 7.0.14 and 7.1.0 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://www.php.net/ChangeLog-7.php (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/php/php-src/commit/b2af4e8868726a040234de113436c6e4f6372d17 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:1296 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugs.php.net/bug.php?id=72978 (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2017:0061 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 94849 (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://cveledger.app/cve/CVE-2016-9936)Record last updated .