Critical
Security advisory
When using certain mbstring functions to convert multibyte encodings, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause function mbfl_filt_conv_big5_wchar to read past the allocated buffer. This may lead to information disclosure or crash.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-7060
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:38 UTC · Revision 1
Source evidence
When using certain mbstring functions to convert multibyte encodings, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause function mbfl_filt_conv_big5_wchar to read past the allocated buffer. This may lead to information disclosure or crash.
osv:CVE-2020-7060
Complete source record
{
"id": "e7c31ffedcfeb5a0d7612bb6e659f8675483b237643d9a2a05a2e38c9a7877c1",
"url": "https://osv.dev/vulnerability/CVE-2020-7060",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-7060",
"summary": "When using certain mbstring functions to convert multibyte encodings, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause function mbfl_filt_conv_big5_wchar to read past the allocated buffer. This may lead to information disclosure or crash.",
"evidence": "osv:CVE-2020-7060",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2020-7060",
"aliases": [
"BIT-libphp-2020-7060",
"BIT-php-2020-7060",
"BIT-php-min-2020-7060",
"CVE-2020-7060"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/php/php-src",
"type": "GIT",
"events": [
{
"introduced": "8148cbb78841c8ec0759c0836e7f35dec799d300"
},
{
"fixed": "40c86aa3af2e25971e9c13460ca874348456410d"
},
{
"introduced": "52ace952a1b65ca80fc2617f11c2fa6dd03f51bd"
},
{
"fixed": "4b2854db6fd2fae5a950ae7ce25257ee08cee916"
},
{
"introduced": "3c7824e16ec4c3cee417262445d2c2b66531c10f"
},
{
"fixed": "264ef4f16300270dd4e92d2510660836a4814579"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.2.0"
},
{
"fixed": "7.2.27"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.3.0"
},
{
"fixed": "7.3.14"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.4.0"
},
{
"fixed": "7.4.2"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7060.json"
}
}
],
"modified": "2026-10-24T10:30:21.358012957Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2020/02/msg00030.html",
"https://seclists.org/bugtraq/2020/Feb/27",
"https://seclists.org/bugtraq/2020/Feb/31",
"https://seclists.org/bugtraq/2021/Jan/3",
"https://security.gentoo.org/glsa/202003-57",
"https://security.netapp.com/advisory/ntap-20200221-0002/",
"https://www.debian.org/security/2020/dsa-4626",
"https://www.debian.org/security/2020/dsa-4628",
"https://www.oracle.com/security-alerts/cpuApr2021.html",
"https://www.oracle.com/security-alerts/cpujul2020.html",
"https://bugs.php.net/bug.php?id=79037",
"https://usn.ubuntu.com/4279-1/",
"https://www.tenable.com/security/tns-2021-14"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_diameter_signaling_router",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.4"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:*"
],
"vendor_product": "tenable:tenable.sc",
"extracted_events": [
{
"range": [
{
"fixed": "5.19.0"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "15.1"
},
{
"last_affected": "15.1"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-7060",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 430466,
"published_at": "2020-02-10T08:15:12.797+00:00"
}