{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-14178","assignerOrgId":"dd77f84a-d19a-4638-8c3d-a322d820ed2b","state":"PUBLISHED","assignerShortName":"php","dateReserved":"2025-12-06T06:25:31.535Z","datePublished":"2025-12-27T19:27:41.691Z","dateUpdated":"2026-01-24T11:04:01.892Z"},"containers":{"cna":{"affected":[{"defaultStatus":"affected","packageName":"php","product":"PHP","vendor":"PHP Group","versions":[{"lessThan":"8.1.34","status":"affected","version":"8.1.*","versionType":"semver"},{"lessThan":"8.2.30","status":"affected","version":"8.2.*","versionType":"semver"},{"lessThan":"8.3.29","status":"affected","version":"8.3.*","versionType":"semver"},{"lessThan":"8.4.16","status":"affected","version":"8.4.*","versionType":"semver"},{"lessThan":"8.5.1","status":"affected","version":"8.5.*","versionType":"semver"}]}],"credits":[{"lang":"en","type":"reporter","value":"Niels Dossche"}],"datePublic":"2025-12-18T00:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>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.</p>"}],"value":"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."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-190","description":"CWE-190 Integer Overflow or Wraparound","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"dd77f84a-d19a-4638-8c3d-a322d820ed2b","shortName":"php","dateUpdated":"2025-12-27T19:27:41.691Z"},"references":[{"url":"https://github.com/php/php-src/security/advisories/GHSA-h96m-rvf9-jgm2"}],"source":{"advisory":"GHSA-h96m-rvf9-jgm2","discovery":"INTERNAL"},"title":"Heap buffer overflow in array_merge()","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-12-29T16:00:50.197017Z","id":"CVE-2025-14178","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-12-29T16:01:02.639Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2026/01/msg00019.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-01-24T11:04:01.892Z"}}]}}