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Vulnerability record · CVE-2016-7411 · published 17 September 2016

CVE-2016-7411: Php memory buffer overflow vulnerability

Php · Php

ext/standard/var_unserializer.re in PHP before 5.6.26 mishandles object-deserialization failures, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via an unserialize call that references a partially constructed object.

9.8 CVSS 3.0 Critical EPSS 5.6% · top 7.3% CWE-119 · Memory buffer overflow
9.8CVSS 3.0 base score, v2 7.5
5.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
14References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

ext/standard/var_unserializer.re in PHP before 5.6.26 mishandles object-deserialization failures, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via an unserialize call that references a partially constructed object.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2016/09/15/10 Mailing List
http://www.php.net/ChangeLog-5.php Release Notes
http://www.securityfocus.com/bid/93009
http://www.securitytracker.com/id/1036836
https://bugs.php.net/bug.php?id=73052 ExploitIssue Tracking
https://github.com/php/php-src/commit/6a7cc8ff85827fa9ac715b3a83c2d9147f33cd43?w=1 Issue TrackingPatch
https://security.gentoo.org/glsa/201611-22
http://www.openwall.com/lists/oss-security/2016/09/15/10 Mailing List
http://www.php.net/ChangeLog-5.php Release Notes
http://www.securityfocus.com/bid/93009
http://www.securitytracker.com/id/1036836
https://bugs.php.net/bug.php?id=73052 ExploitIssue Tracking
https://github.com/php/php-src/commit/6a7cc8ff85827fa9ac715b3a83c2d9147f33cd43?w=1 Issue TrackingPatch
https://security.gentoo.org/glsa/201611-22

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2016-7411), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.