CVE-2016-7480

Name: CVE-2016-7480
Creator: NVD / NIST
Published: 2017-01-11T07:59:00.143+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 41.56%

Last modified Jun 17, 2026

CVE-2016-7480 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The SplObjectStorage unserialize implementation in ext/spl/spl_observer.c in PHP before 7.0.12 does not verify that a key is an object, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized memory access) via crafted serialized data.. EPSS estimates a 41.56% chance of exploitation in the next 30 days.

Description

The SplObjectStorage unserialize implementation in ext/spl/spl_observer.c in PHP before 7.0.12 does not verify that a key is an object, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized memory access) via crafted serialized data.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

41.56%

98.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Php	Php	>= 7.0.0, < 7.0.11
Netapp	Clustered Data Ontap	All versions

References

http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7Third Party Advisory, VDB Entry
http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdfExploit, Technical Description, Third Party Advisory
http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
http://www.securityfocus.com/bid/95152Third Party Advisory, VDB Entry
https://bugs.php.net/bug.php?id=73257Issue Tracking, Patch, Vendor Advisory
https://github.com/php/php-src/commit/61cdd1255d5b9c8453be71aacbbf682796ac77d4Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20180112-0001/Third Party Advisory
https://www.youtube.com/watch?v=LDcaPstAuPkBroken Link, Third Party Advisory
http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7Third Party Advisory, VDB Entry
http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdfExploit, Technical Description, Third Party Advisory
http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
http://www.securityfocus.com/bid/95152Third Party Advisory, VDB Entry
https://bugs.php.net/bug.php?id=73257Issue Tracking, Patch, Vendor Advisory
https://github.com/php/php-src/commit/61cdd1255d5b9c8453be71aacbbf682796ac77d4Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20180112-0001/Third Party Advisory
https://www.youtube.com/watch?v=LDcaPstAuPkBroken Link, Third Party Advisory

Timeline

Published: Jan 11, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-7480?

How severe is CVE-2016-7480?

CVE-2016-7480 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 41.56% probability of exploitation in the next 30 days.

How do I fix CVE-2016-7480?

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-2016-7480?

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

Scan your code now

Source: NVD / NIST