FKIE_CVE-2025-14178

Vulnerability from fkie_nvd - Published: 2025-12-27 20:15 - Updated: 2026-10-13 09:10
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Summary
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.
References
security@php.nethttps://github.com/php/php-src/security/advisories/GHSA-h96m-rvf9-jgm2Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2026/01/msg00019.html
Impacted products
Vendor Product Version
php php *
php php *
php php *
php php *
php php *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "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"
            }
          ]
        }
      ],
      "source": "security@php.net"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "56FCF002-3946-40DF-A774-75C6DDE6CA26",
              "versionEndExcluding": "8.1.34",
              "versionStartIncluding": "8.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "AB314013-4F2F-40F0-968B-35FEC22CC8A4",
              "versionEndExcluding": "8.2.30",
              "versionStartIncluding": "8.2.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DAD5402D-688D-44AA-B083-5157FDC53D7A",
              "versionEndExcluding": "8.3.29",
              "versionStartIncluding": "8.3.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8813328B-AC06-4060-916F-CD27144F41E2",
              "versionEndExcluding": "8.4.16",
              "versionStartIncluding": "8.4.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E56CD990-B79E-4253-B810-13787B23B028",
              "versionEndExcluding": "8.5.1",
              "versionStartIncluding": "8.5.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "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."
    },
    {
      "lang": "es",
      "value": "En las versiones de PHP: 8.1.* anteriores a 8.1.34, 8.2.* anteriores a 8.2.30, 8.3.* anteriores a 8.3.29, 8.4.* anteriores a 8.4.16, 8.5.* anteriores a 8.5.1, se produce un desbordamiento de b\u00fafer de pila en array_merge() cuando el recuento total de elementos de los arrays empaquetados excede los l\u00edmites de 32 bits o HT_MAX_SIZE, debido a un desbordamiento de entero en el prec\u00e1lculo de los recuentos de elementos utilizando zend_hash_num_elements(). Esto puede provocar corrupci\u00f3n de memoria o fallos y afectar la integridad y disponibilidad del servidor objetivo."
    }
  ],
  "id": "CVE-2025-14178",
  "lastModified": "2026-10-13T09:10:00.323",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 4.2,
        "source": "security@php.net",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-14178",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-12-29T16:00:50.197017Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-12-27T20:15:40.570",
  "references": [
    {
      "source": "security@php.net",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/php/php-src/security/advisories/GHSA-h96m-rvf9-jgm2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2026/01/msg00019.html"
    }
  ],
  "sourceIdentifier": "security@php.net",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        },
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "security@php.net",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.