High
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-7412
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:11 UTC · Revision 1
Source evidence
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.
osv:CVE-2016-7412
Complete source record
{
"id": "f91e70380fe9b1a094ac25f05a84e8abcdf4696d8efce50394e73e1bb5ea09d1",
"url": "https://osv.dev/vulnerability/CVE-2016-7412",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-7412",
"summary": "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.",
"evidence": "osv:CVE-2016-7412",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2016-7412",
"aliases": [
"CVE-2016-7412"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/php/php-src",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "e37064dae4a80c70405899bb591969bbe6aad9a8"
},
{
"introduced": "60fffd296abce5fc071f3c173c25a2696cf683c6"
},
{
"last_affected": "da12ca9c1ed03084e6803f5e81e46f2e0a80460a"
},
{
"fixed": "28f80baf3c53e267c9ce46a2a0fadbb981585132"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "5.6.25"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.0"
},
{
"last_affected": "7.0.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.1"
},
{
"last_affected": "7.0.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.2"
},
{
"last_affected": "7.0.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:php:7.0.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.3"
},
{
"last_affected": "7.0.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.4"
},
{
"last_affected": "7.0.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:php:7.0.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.5"
},
{
"last_affected": "7.0.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:php:7.0.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.6"
},
{
"last_affected": "7.0.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:php:7.0.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.7"
},
{
"last_affected": "7.0.7"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:php:7.0.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.8"
},
{
"last_affected": "7.0.8"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:php:7.0.9:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.9"
},
{
"last_affected": "7.0.9"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:php:7.0.10:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.10"
},
{
"last_affected": "7.0.10"
}
],
"source": "CPE_STRING"
},
{
"range": [
{
"fixed": "28f80baf3c53e267c9ce46a2a0fadbb981585132"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"7.0.0",
"7.0.1",
"7.0.10",
"7.0.2",
"7.0.3",
"7.0.4",
"7.0.5",
"7.0.6",
"7.0.7",
"7.0.8",
"7.0.9",
"php-5.6.25",
"php-7.0.10",
"php-5.6.25RC1",
"php-7.0.10RC1",
"POST_PHP7_NSAPI_REMOVAL",
"PRE_PHP7_NSAPI_REMOVAL",
"PRE_PHP7_EREG_MYSQL_REMOVALS",
"PRE_PHP7_REMOVALS",
"POST_PHP7_REMOVALS",
"POST_AST_MERGE",
"PRE_AST_MERGE",
"POST_64BIT_BRANCH_MERGE",
"PRE_64BIT_BRANCH_MERGE",
"POST_PHPNG_MERGE"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-7412.json",
"vanir_signatures": [
{
"id": "CVE-2016-7412-3762bf47",
"digest": {
"threshold": 0.9,
"line_hashes": [
"249684498042240104919474913087959312133",
"294106856008990921454682331070541347290",
"291790975272401864220714640723204659645",
"182463667427846090686334541930162249051",
"23221408885960602770248951632829372883",
"102519181322775604896206692251875183170",
"217819109308750851380110347289940526217",
"229437743912094742651351551469076772872"
]
},
"source": "https://github.com/php/php-src/commit/28f80baf3c53e267c9ce46a2a0fadbb981585132",
"target": {
"file": "ext/mysqlnd/mysqlnd_wireprotocol.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:17:30Z"
}
}
],
"modified": "2026-10-20T13:17:30.844225690Z",
"provider": "osv",
"references": [
"https://www.tenable.com/security/tns-2016-19",
"https://access.redhat.com/errata/RHSA-2018:1296",
"https://security.gentoo.org/glsa/201611-22",
"https://bugs.php.net/bug.php?id=72293",
"https://github.com/php/php-src/commit/28f80baf3c53e267c9ce46a2a0fadbb981585132?w=1"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2016-7412",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 387462,
"published_at": "2016-09-17T21:59:03.9+00:00"
}