Description

In PHP versions:8.1.* before 8.1.34, 8.2.* before 8.2.30, 8.3.* before 8.3.29, 8.4.* before 8.4.16, 8.5.* before 8.5.1, a heap buffer overflow occurs in array_merge() when the total element count of packed arrays exceeds 32-bit limits or HT_MAX_SIZE, due to an integer overflow in the precomputation of element counts using zend_hash_num_elements(). This may lead to memory corruption or crashes and affect the integrity and availability of the target server.

INFO

Published Date :

2025-12-27T19:27:41.691Z

Last Modified :

2026-01-24T11:04:01.892Z

Source :

php
AFFECTED PRODUCTS

The following products are affected by CVE-2025-14178 vulnerability.

Vendors Products
Php
  • Php
Php Group
  • Php
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-14178.

URL Resource
https://github.com/php/php-src/security/advisories/GHSA-h96m-rvf9-jgm2 cve-icon cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2026/01/msg00019.html cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-14178 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-14178 cve-icon
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