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CVE-2016-9936
CRITICAL
The unserialize implementation in ext/standard/var.c in PHP 7.x before 7.0.14 allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via crafted serialized data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-6834.
Published: Jan 4, 2017
Modified: Jun 17, 2026
CWE-416
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products (14)
| Vendor | Product | Version |
|---|---|---|
| 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 |
| php | php | 7.0.11 |
| php | php | 7.0.12 |
| php | php | 7.0.13 |
GitHub Security Advisory GHSA-jp9f-r2q5-mv5q
The unserialize implementation in ext/standard/var.c in PHP 7.x before 7.0.14 allows remote...
References (14)
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00034.html
- http://www.openwall.com/lists/oss-security/2016/12/12/2 Mailing List
- http://www.php.net/ChangeLog-7.php Patch, Release Notes
- http://www.securityfocus.com/bid/94849
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=72978 Exploit, Issue Tracking
- https://github.com/php/php-src/commit/b2af4e8868726a040234de113436c6e4f6372d17 Patch
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00034.html
- http://www.openwall.com/lists/oss-security/2016/12/12/2 Mailing List
- http://www.php.net/ChangeLog-7.php Patch, Release Notes
- http://www.securityfocus.com/bid/94849
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=72978 Exploit, Issue Tracking
- https://github.com/php/php-src/commit/b2af4e8868726a040234de113436c6e4f6372d17 Patch
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
4.15%
Top 10% most likely to be exploited
Threat Score
40.4 / 100
Data Sources
NVD
EPSS
GitHub