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Vulnerability record · CVE-2016-6297 · published 25 July 2016

CVE-2016-6297: Php memory buffer overflow vulnerability

Php · Php

Integer overflow in the php_stream_zip_opener function in ext/zip/zip_stream.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a crafted zip:// URL.

8.8 CVSS 3.0 High EPSS 5.3% · top 7.7% CWE-119 · Memory buffer overflow
8.8CVSS 3.0 base score, v2 6.8
5.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
26References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Integer overflow in the php_stream_zip_opener function in ext/zip/zip_stream.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a crafted zip:// URL.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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://fortiguard.com/advisory/fortinet-discovers-php-stack-based-buffer-overflow-vulnerabilities Third Party Advisory
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=81406c0c1d45f75fcc7972ed974d2597abb0b9e9
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
http://openwall.com/lists/oss-security/2016/07/24/2 Mailing List
http://php.net/ChangeLog-5.php Release Notes
http://php.net/ChangeLog-7.php Release Notes
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://www.debian.org/security/2016/dsa-3631
http://www.securityfocus.com/bid/92099 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1036430
https://bugs.php.net/72520 ExploitIssue Tracking
https://security.gentoo.org/glsa/201611-22
https://support.apple.com/HT207170
http://fortiguard.com/advisory/fortinet-discovers-php-stack-based-buffer-overflow-vulnerabilities Third Party Advisory
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=81406c0c1d45f75fcc7972ed974d2597abb0b9e9
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
http://openwall.com/lists/oss-security/2016/07/24/2 Mailing List
http://php.net/ChangeLog-5.php Release Notes
http://php.net/ChangeLog-7.php Release Notes
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://www.debian.org/security/2016/dsa-3631
http://www.securityfocus.com/bid/92099 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1036430
https://bugs.php.net/72520 ExploitIssue Tracking
https://security.gentoo.org/glsa/201611-22
https://support.apple.com/HT207170

Track CVE-2016-6297 inside VULONE

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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-2016-6297), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.