Servers and applications
CVE-2024-4577
In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, when using Apache and PHP-CGI on Windows, if the system is set up to use certain code pages, Windows may use "Best-Fit" behavior to replace characters in command line given to Win32 API functions. PHP CGI module may misinterpret those characters as PHP options, which may allow a malicious user to pass options to PHP…
Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 12 Jun 2024.
- Severity
- Critical 9.8
- Published
- 9 Jun 2024
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 14 Oct 2026
- Fixed in
- 8.1.29, 8.2.20, 8.3.8
- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
PHPServers and applications · cpe:a:php:php |
|
Known exploited
- CISA name
- PHP-CGI OS Command Injection Vulnerability
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Due for US agencies
- 3 Jul 2024
- Used in ransomware
- Yes, known