CVE-2016-7480

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Summary

CVECVE-2016-7480
StatePUBLISHED
Assignercheckpoint
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-01-11 07:59:00 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

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

EPSS: 0.036110000 probability, percentile 0.878620000 (date 2026-05-11)

Problem Types: CWE-119 | missing data-type validation

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Netapp Clustered Data Ontap - All All All
Application Php Php All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na PHP Before 7.0.12 affected PHP before 7.0.12 Not specified

References

ReferenceSourceLinkTags
Fix bug #73257 and bug #73258 - SplObjectStorage unserialize allows u… · php/php-src@61cdd12 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
September 2017 PHP Vulnerabilities in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
PHP :: Sec Bug #73257 :: pointer to uninitialized memory passed to unserialize af854a3a-2127-422b-91ae-364da2661108 bugs.php.net Issue Tracking, Patch, Vendor Advisory
blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf af854a3a-2127-422b-91ae-364da2661108 blog.checkpoint.com Exploit, Technical Description, Third Party Advisory
YouTube af854a3a-2127-422b-91ae-364da2661108 www.youtube.com Broken Link, Third Party Advisory
PHP: PHP 7 ChangeLog af854a3a-2127-422b-91ae-364da2661108 php.net Release Notes, Vendor Advisory
Check Point discovers three Zero-Day Vulnerabilities in web programming language PHP 7 | Check Point Blog af854a3a-2127-422b-91ae-364da2661108 blog.checkpoint.com Third Party Advisory, VDB Entry
PHP CVE-2016-7480 Remote Code Execution Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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