QwikSec

Security Database

CVE

CWE

Training

CVE Database
/

CVE-2025-14178

Back to search

CVE-2025-14178

Published: Dec 27, 2025

Modified: Jan 24, 2026

PUBLISHED

CVSS v3.1

6.5

MEDIUM

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.

VendorProductVersions

PHP Group

PHP

affected
8.1.* - < 8.1.34
affected
8.2.* - < 8.2.30
affected
8.3.* - < 8.3.29
affected
8.4.* - < 8.4.16
affected
8.5.* - < 8.5.1

Weaknesses (CWE)

CWE-787
CWE-190

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

References

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now