CVE-2024-11235: php_group php Use After Free

Vulnerability summary

CVE-2024-11235 is a critical (CVSS 9.2) Use After Free vulnerability in php_group php. EPSS estimates a 1.48% chance of exploitation in the next 30 days, higher than 73.5% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 04-04-2025
   PublishedVulnerability first disclosed.
2. 26-02-2026
   Last modifiedVulnerability information updated.

Description

In PHP versions 8.3.* before 8.3.19 and 8.4.* before 8.4.5, a code sequence involving __set handler or ??=  operator and exceptions can lead to a use-after-free vulnerability. If the third party can control the memory layout leading to this, for example by supplying specially crafted inputs to the script, it could lead to remote code execution.

• CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.