CVE-2016-7412
ext/mysqlnd/mysqlnd_wireprotocol.c in PHP before 5.6.26 and 7.x before 7.0.11 does not verify that a BIT field has the UNSIGNED_FLAG flag, which allows remote MySQL servers to cause a denial of service (heap-based buffer overflow) or possibly have…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.85%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
ext/mysqlnd/mysqlnd_wireprotocol.c in PHP before 5.6.26 and 7.x before 7.0.11 does not verify that a BIT field has the UNSIGNED_FLAG flag, which allows remote MySQL servers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted field metadata.
- CVSS 3.0
- 8.1 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 8.85% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- php/php
- Source
- cve@mitre.org
EPSS 8.8% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2016/09/15/10Mailing List
- http://www.php.net/ChangeLog-5.phpRelease Notes
- http://www.php.net/ChangeLog-7.phpRelease Notes
- http://www.securityfocus.com/bid/93005
- http://www.securitytracker.com/id/1036836
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=72293Exploit, Issue Tracking
- https://github.com/php/php-src/commit/28f80baf3c53e267c9ce46a2a0fadbb981585132?w=1Issue Tracking, Patch
- https://security.gentoo.org/glsa/201611-22
- https://www.tenable.com/security/tns-2016-19
- http://www.openwall.com/lists/oss-security/2016/09/15/10Mailing List
- http://www.php.net/ChangeLog-5.phpRelease Notes
- http://www.php.net/ChangeLog-7.phpRelease Notes
- http://www.securityfocus.com/bid/93005
- http://www.securitytracker.com/id/1036836
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=72293Exploit, Issue Tracking
- https://github.com/php/php-src/commit/28f80baf3c53e267c9ce46a2a0fadbb981585132?w=1Issue Tracking, Patch
- https://security.gentoo.org/glsa/201611-22
- https://www.tenable.com/security/tns-2016-19
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.