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
2025-12-27T19:27:41.691Z
Modified
2026-06-18T03:56:51.396269424Z
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 arraymerge() when the total element count of packed arrays exceeds 32-bit limits or HTMAXSIZE, due to an integer overflow in the precomputation of element counts using zendhashnumelements(). This may lead to memory corruption or crashes and affect the integrity and availability of the target server.

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

Affected packages

Git / github.com/php/php-src

Affected ranges

Type
GIT
Repo
https://github.com/php/php-src
Events
Database specific
{
    "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"
        }
    ],
    "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE"
}

Database specific

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