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CVE-2025-14178

Heap buffer overflow in array_merge() PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
PHP Group / PHPaffected 8.1.* before 8.1.34; affected 8.2.* before 8.2.30; affected 8.3.* before 8.3.29; affected 8.4.* before 8.4.16; affected 8.5.* before 8.5.1

CWE

CWE-787, CWE-190

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.