CVE-2025-14178

Source
https://cve.org/CVERecord?id=CVE-2025-14178
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-14178.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-14178
Aliases
Downstream
Related
Published
2025-12-27T19:27:41Z
Modified
2026-08-12T03:30:21Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
Summary
Heap buffer overflow in array_merge()
Details

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.

Database specific
{
    "cna_assigner": "php",
    "cwe_ids": [
        "CWE-190",
        "CWE-787"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/14xxx/CVE-2025-14178.json"
}
References

Affected packages

Git / github.com/php/php-src

Affected ranges

Type
GIT
Repo
https://github.com/php/php-src
Events
Database specific
Show details
{
    "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "8.1.0"
        },
        {
            "fixed": "8.1.34"
        },
        {
            "introduced": "8.2.0"
        },
        {
            "fixed": "8.2.30"
        },
        {
            "introduced": "8.3.0"
        },
        {
            "fixed": "8.3.29"
        },
        {
            "introduced": "8.4.0"
        },
        {
            "fixed": "8.4.16"
        },
        {
            "introduced": "8.5.0"
        },
        {
            "fixed": "8.5.1"
        }
    ],
    "source": "CPE_RANGE"
}

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-14178.json"