CVE-2016-7131

Name: CVE-2016-7131
Creator: NVD / NIST
Published: 2016-09-12T01:59:09.787+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 8.83%

Last modified Jun 17, 2026

CVE-2016-7131 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. ext/wddx/wddx.c in PHP before 5.6.25 and 7.x before 7.0.10 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) or possibly have unspecified other impact via a malformed wddxPacket XML document that is mishandled in a wddx_deserialize call, as demonstrated by a tag that lacks a < (less than) character.. EPSS estimates a 8.83% chance of exploitation in the next 30 days.

Description

ext/wddx/wddx.c in PHP before 5.6.25 and 7.x before 7.0.10 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) or possibly have unspecified other impact via a malformed wddxPacket XML document that is mishandled in a wddx_deserialize call, as demonstrated by a tag that lacks a < (less than) character.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

8.83%

94.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

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	<= 5.6.24

References

http://openwall.com/lists/oss-security/2016/09/02/9Mailing List
http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
http://www.php.net/ChangeLog-5.phpRelease Notes
http://www.php.net/ChangeLog-7.phpRelease Notes
http://www.securityfocus.com/bid/92768Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036680Third Party Advisory, VDB Entry
https://bugs.php.net/bug.php?id=72790Exploit, Issue Tracking
https://github.com/php/php-src/commit/0c8a2a2cd1056b7dc403eacb5d2c0eec6ce47c6fPatch, Vendor Advisory
https://github.com/php/php-src/commit/a14fdb9746262549bbbb96abb87338bacd147e1b?w=1Issue Tracking, Patch
https://security.gentoo.org/glsa/201611-22Third Party Advisory
https://www.tenable.com/security/tns-2016-19Third Party Advisory
http://openwall.com/lists/oss-security/2016/09/02/9Mailing List
http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
http://www.php.net/ChangeLog-5.phpRelease Notes
http://www.php.net/ChangeLog-7.phpRelease Notes
http://www.securityfocus.com/bid/92768Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036680Third Party Advisory, VDB Entry
https://bugs.php.net/bug.php?id=72790Exploit, Issue Tracking
https://github.com/php/php-src/commit/0c8a2a2cd1056b7dc403eacb5d2c0eec6ce47c6fPatch, Vendor Advisory
https://github.com/php/php-src/commit/a14fdb9746262549bbbb96abb87338bacd147e1b?w=1Issue Tracking, Patch
https://security.gentoo.org/glsa/201611-22Third Party Advisory
https://www.tenable.com/security/tns-2016-19Third Party Advisory

Timeline

Published: Sep 12, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-7131?

How severe is CVE-2016-7131?

CVE-2016-7131 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 8.83% probability of exploitation in the next 30 days.

How do I fix CVE-2016-7131?

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-2016-7131?

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

Scan your code now

Source: NVD / NIST