CVE-2016-7480

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-119

Affected software

Vendor	Product	Versions
n/a	PHP before 7.0.12	PHP before 7.0.12

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
NVD status: Modified

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