High
Security advisory
The get_icu_value_internal function in ext/intl/locale/locale_methods.c in PHP before 5.5.36, 5.6.x before 5.6.22, and 7.x before 7.0.7 does not ensure the presence of a '\0' character, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted locale_get_primary_language call.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-5093
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:10 UTC · Revision 1
Source evidence
The get_icu_value_internal function in ext/intl/locale/locale_methods.c in PHP before 5.5.36, 5.6.x before 5.6.22, and 7.x before 7.0.7 does not ensure the presence of a '\0' character, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted locale_get_primary_language call.
osv:CVE-2016-5093
Complete source record
{
"id": "3320650cf431a5243324654e7ee31ee5fb4e7a4dddcd1d4d84e716451962647e",
"url": "https://osv.dev/vulnerability/CVE-2016-5093",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-5093",
"summary": "The get_icu_value_internal function in ext/intl/locale/locale_methods.c in PHP before 5.5.36, 5.6.x before 5.6.22, and 7.x before 7.0.7 does not ensure the presence of a '\\0' character, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted locale_get_primary_language call.",
"evidence": "osv:CVE-2016-5093",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2016-5093",
"aliases": [
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],
"metrics": [
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"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H"
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"modified": "2026-10-20T13:15:24.096315005Z",
"provider": "osv",
"references": [
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],
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},
"source_id": "core-osv",
"document_id": 387398,
"published_at": "2016-08-07T10:59:06.18+00:00"
}