CVE-2016-7416

Name: CVE-2016-7416
Creator: NVD / NIST
Published: 2016-09-17T21:59:08.107+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 6.67%

Last modified Jun 17, 2026

CVE-2016-7416 is a vulnerability of currently unknown severity. ext/intl/msgformat/msgformat_format.c in PHP before 5.6.26 and 7.x before 7.0.11 does not properly restrict the locale length provided to the Locale class in the ICU library, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a MessageFormatter::formatMessage call with a long first argument.. EPSS estimates a 6.67% chance of exploitation in the next 30 days.

Description

ext/intl/msgformat/msgformat_format.c in PHP before 5.6.26 and 7.x before 7.0.11 does not properly restrict the locale length provided to the Locale class in the ICU library, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a MessageFormatter::formatMessage call with a long first argument.

Metrics

EPSS Probability

6.67%

93.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Php	Php	<= 5.6.25
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

References

http://www.openwall.com/lists/oss-security/2016/09/15/10Mailing List
http://www.php.net/ChangeLog-5.phpRelease Notes
http://www.php.net/ChangeLog-7.phpRelease Notes
http://www.securityfocus.com/bid/93008
http://www.securitytracker.com/id/1036836
https://access.redhat.com/errata/RHSA-2018:1296
https://bugs.php.net/bug.php?id=73007Exploit, Issue Tracking
https://github.com/php/php-src/commit/6d55ba265637d6adf0ba7e9c9ef11187d1ec2f5b?w=1Issue Tracking, Patch
https://security.gentoo.org/glsa/201611-22
https://www.tenable.com/security/tns-2016-19
http://www.openwall.com/lists/oss-security/2016/09/15/10Mailing List
http://www.php.net/ChangeLog-5.phpRelease Notes
http://www.php.net/ChangeLog-7.phpRelease Notes
http://www.securityfocus.com/bid/93008
http://www.securitytracker.com/id/1036836
https://access.redhat.com/errata/RHSA-2018:1296
https://bugs.php.net/bug.php?id=73007Exploit, Issue Tracking
https://github.com/php/php-src/commit/6d55ba265637d6adf0ba7e9c9ef11187d1ec2f5b?w=1Issue Tracking, Patch
https://security.gentoo.org/glsa/201611-22
https://www.tenable.com/security/tns-2016-19

Timeline

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

Frequently Asked Questions

What is CVE-2016-7416?

How severe is CVE-2016-7416?

Severity scoring for CVE-2016-7416 is pending analysis. The EPSS model estimates a 6.67% probability of exploitation in the next 30 days.

How do I fix CVE-2016-7416?

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-2016-7416?

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

Scan your code now

Source: NVD / NIST