FKIE_CVE-2025-6491

Vulnerability from fkie_nvd - Published: 2025-07-13 22:15 - Updated: 2025-11-04 22:16
Severity ?
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (>2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server.
References
security@php.nethttps://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8xExploit, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/07/11/4
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/07/msg00017.html
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8xExploit, Vendor Advisory
Impacted products
Vendor Product Version
php php *
php php *
php php *
php php *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1DFFB7CE-0CB6-4229-8A83-D5994163F599",
              "versionEndExcluding": "8.1.33",
              "versionStartIncluding": "8.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C0671DC7-C9E0-4CB9-8CBE-7C7D724A4E3F",
              "versionEndExcluding": "8.2.29",
              "versionStartIncluding": "8.2.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "99142A2A-C510-477B-A090-DE73441BBFD0",
              "versionEndExcluding": "8.3.23",
              "versionStartIncluding": "8.3.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "61D8A8DF-85D3-435B-BB2B-F3D728575758",
              "versionEndExcluding": "8.4.10",
              "versionStartIncluding": "8.4.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (\u003e2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server."
    },
    {
      "lang": "es",
      "value": "En las versiones de PHP 8.1.* anteriores a la 8.1.33, 8.2.* anteriores a la 8.2.29, 8.3.* anteriores a la 8.3.23 y 8.4.* anteriores a la 8.4.10, al analizar datos XML en extensiones SOAP, un prefijo de espacio de nombres XML demasiado grande (\u0026gt;2 GB) puede provocar la desreferencia de puntero nulo. Esto puede provocar fallos y afectar la disponibilidad del servidor de destino."
    }
  ],
  "id": "CVE-2025-6491",
  "lastModified": "2025-11-04T22:16:43.147",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "security@php.net",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-07-13T22:15:23.353",
  "references": [
    {
      "source": "security@php.net",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2025/07/11/4"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/07/msg00017.html"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x"
    }
  ],
  "sourceIdentifier": "security@php.net",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "security@php.net",
      "type": "Secondary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.



Detection rules are retrieved from Rulezet.