CVE-2016-9936

Name: CVE-2016-9936
Creator: NVD / NIST
Published: 2017-01-04T20:59:00.607+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.27%

Last modified Jun 17, 2026

CVE-2016-9936 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 4.27% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

4.27%

89.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Php	Php	7.0.0
Php	Php	7.0.1
Php	Php	7.0.2
Php	Php	7.0.3
Php	Php	7.0.4
Php	Php	7.0.5
Php	Php	7.0.6
Php	Php	7.0.7
Php	Php	7.0.8
Php	Php	7.0.9
Php	Php	7.0.10
Php	Php	7.0.11
Php	Php	7.0.12
Php	Php	7.0.13

References

http://lists.opensuse.org/opensuse-updates/2017-01/msg00034.html
http://www.openwall.com/lists/oss-security/2016/12/12/2Mailing List
http://www.php.net/ChangeLog-7.phpPatch, Release Notes
http://www.securityfocus.com/bid/94849
https://access.redhat.com/errata/RHSA-2018:1296
https://bugs.php.net/bug.php?id=72978Exploit, Issue Tracking
https://github.com/php/php-src/commit/b2af4e8868726a040234de113436c6e4f6372d17Patch
http://lists.opensuse.org/opensuse-updates/2017-01/msg00034.html
http://www.openwall.com/lists/oss-security/2016/12/12/2Mailing List
http://www.php.net/ChangeLog-7.phpPatch, Release Notes
http://www.securityfocus.com/bid/94849
https://access.redhat.com/errata/RHSA-2018:1296
https://bugs.php.net/bug.php?id=72978Exploit, Issue Tracking
https://github.com/php/php-src/commit/b2af4e8868726a040234de113436c6e4f6372d17Patch

Timeline

Published: Jan 4, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-9936?

How severe is CVE-2016-9936?

Severity scoring for CVE-2016-9936 is pending analysis. The EPSS model estimates a 4.27% probability of exploitation in the next 30 days.

How do I fix CVE-2016-9936?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-9936?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST