VULNERABILITY INTELLIGENCE
CVE-2020-7065
CVSS score7.4 HIGH
EPSS probability4.88%
CISA KEVNot currently listed
Published2020-04-01
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Description
In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.
Weakness classification
- security@php.net: CWE-121
- nvd@nist.gov: CWE-787
Primary references
- security@php.net — Exploit, Issue Tracking, Patch, Vendor Advisory
- security@php.net — Third Party Advisory
- security@php.net — Third Party Advisory
- security@php.net — Third Party Advisory
- security@php.net — Third Party Advisory
- security@php.net — Patch, Third Party Advisory
- security@php.net — Release Notes, Vendor Advisory
- security@php.net — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory