CVEvulnerability

CVE-2025-14178

8.2 HIGH Published 2025-12-27 Modified 2026-10-13 Official page ↗
Status
Modified
Published
2025-12-27
Last modified
2026-10-13
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
CVSS 3.1 ([email protected])
8.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Weaknesses
CWE-190, CWE-787

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.

Affected configurations

• php php (>= 8.1.0 < 8.1.34) • php php (>= 8.2.0 < 8.2.30) • php php (>= 8.3.0 < 8.3.29) • php php (>= 8.4.0 < 8.4.16) • php php (>= 8.5.0 < 8.5.1)

Related

Weakness · CWE (2)

  • CWE-190 Integer Overflow or Wraparound weakness
  • CWE-787 Out-of-bounds Write weakness

References