UpHeron
All vulnerabilities

Servers and applications

CVE-2020-7065

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.

Severity
High 8.8
Published
1 Apr 2020
Last changed
17 Jun 2026
Added to UpHeron
14 Oct 2026
Fixed in
7.3.16, 7.4.4
Sources
NVD

Affected software

SoftwareAffected versions
PHPServers and applications · cpe:a:php:php
  • From 7.3.0 before 7.3.16
  • From 7.4.0 before 7.4.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-7065
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-7065