Critical
Security advisory
In all versions of PHP 7, during the unserialization process, resizing the 'properties' hash table of a serialized object may lead to use-after-free. A remote attacker may exploit this bug to gain arbitrary code execution.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-7479
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:10 UTC · Revision 1
Source evidence
In all versions of PHP 7, during the unserialization process, resizing the 'properties' hash table of a serialized object may lead to use-after-free. A remote attacker may exploit this bug to gain arbitrary code execution.
osv:CVE-2016-7479
Complete source record
{
"id": "8b5519a5d6c1b9a0ebf593e30e70f3e9f98b59717691bc5c5074d56b9214daa5",
"url": "https://osv.dev/vulnerability/CVE-2016-7479",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-7479",
"summary": "In all versions of PHP 7, during the unserialization process, resizing the 'properties' hash table of a serialized object may lead to use-after-free. A remote attacker may exploit this bug to gain arbitrary code execution.",
"evidence": "osv:CVE-2016-7479",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2016-7479",
"aliases": [
"CVE-2016-7479"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/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": "60fffd296abce5fc071f3c173c25a2696cf683c6"
},
{
"last_affected": "0221e9f827632942225586687a33cfd554860d5e"
}
],
"database_specific": {
"extracted_events": [
{
"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"
},
{
"cpe": "cpe:2.3:a:php:php:7.0.11:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.11"
},
{
"last_affected": "7.0.11"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:php:7.0.12:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.12"
},
{
"last_affected": "7.0.12"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:php:7.0.14:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.14"
},
{
"last_affected": "7.0.14"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:php:php:7.1.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.1.0"
},
{
"last_affected": "7.1.0"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"7.0.0",
"7.0.1",
"7.0.10",
"7.0.11",
"7.0.12",
"7.0.14",
"7.0.2",
"7.0.3",
"7.0.4",
"7.0.5",
"7.0.6",
"7.0.7",
"7.0.8",
"7.0.9",
"7.1.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-7479.json"
}
}
],
"modified": "2026-10-24T10:30:49.618995963Z",
"provider": "osv",
"references": [
"https://access.redhat.com/errata/RHSA-2018:1296",
"https://security.netapp.com/advisory/ntap-20180112-0001/",
"https://bugs.php.net/bug.php?id=73092",
"https://www.youtube.com/watch?v=LDcaPstAuPk"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2016-7479",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 437040,
"published_at": "2017-01-12T00:59:00.14+00:00"
}