CVE-2010-2093

Status: ModifiedMedium (5)—
Severity5Medium · CVSS 2.0
Exploitation probability1.85 %higher than 79% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

Use-after-free vulnerability in the request shutdown functionality in PHP 5.2 before 5.2.13 and 5.3 before 5.3.2 allows context-dependent attackers to cause a denial of service (crash) via a stream context structure that is freed before destruction occurs.

CVSS

Base score
5
Version
2.0
Vector
AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
1.85 %
Percentile among all scored CVEs
79
Score date
10/23/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

CWEs

References

Show 6 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2010-2093",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2010-05-27T22:30:01.530",
  "references": [
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00000.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://php-security.org/2010/05/12/mops-2010-022-php-stream-context-use-after-free-on-request-shutdown-vulnerability/index.html",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00000.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://php-security.org/2010/05/12/mops-2010-022-php-stream-context-use-after-free-on-request-shutdown-vulnerability/index.html",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-399"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Use-after-free vulnerability in the request shutdown functionality in PHP 5.2 before 5.2.13 and 5.3 before 5.3.2 allows context-dependent attackers to cause a denial of service (crash) via a stream context structure that is freed before destruction occurs."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de uso despues de liberacion en la funcionalidad de petición shutdown en PHP v5.2 anterior v5.2.13 y v5.3 anterior v5.3.2 permite a atacantes dependientes del contexto causar una denegación de servicio (caída) a través de una estructura cadena de contexto que es liberada antes de que ocurra la destrucción."
    }
  ],
  "lastModified": "2026-06-16T23:19:58.103",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:php:php:5.2.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CD02D837-FD28-4E0F-93F8-25E8D1C84A99"
            },
            {
              "criteria": "cpe:2.3:a:php:php:5.2.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "88358D1E-BE6F-4CE3-A522-83D1FA4739E3"
            },
            {
              "criteria": "cpe:2.3:a:php:php:5.2.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D8B97B03-7DA7-4A5F-89B4-E78CAB20DE17"
            },
            {
              "criteria": "cpe:2.3:a:php:php:5.2.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "86767200-6C9C-4C3E-B111-0E5BE61E197B"
            },
            {
              "criteria": "cpe:2.3:a:php:php:5.2.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B00B416D-FF23-4C76-8751-26D305F0FA0F"
            },
            {
              "criteria": "cpe:2.3:a:php:php:5.2.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CCB6CDDD-70D3-4004-BCE0-8C4723076103"
            },
            {
              "criteria": "cpe:2.3:a:php:php:5.2.6:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A782CA26-9C38-40A8-92AE-D47B14D2FCE3"
            },
            {
              "criteria": "cpe:2.3:a:php:php:5.2.7:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1C0E7E2A-4770-4B68-B74C-5F5A6E1876DC"
            },
            {
              "criteria": "cpe:2.3:a:php:php:5.2.8:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0892C89E-9389-4452-B7E0-981A763CD426"
            },
            {
              "criteria": "cpe:2.3:a:php:php:5.2.9:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "635F3CB1-B042-43CC-91AB-746098018D8C"
            },
            {
              "criteria": "cpe:2.3:a:php:php:5.2.10:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E1F32DDF-17A3-45B5-9227-833EBEBD3923"
            },
            {
              "criteria": "cpe:2.3:a:php:php:5.2.11:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2CDFB7E9-8510-430F-BFBC-FD811D60DC78"
            },
            {
              "criteria": "cpe:2.3:a:php:php:5.2.12:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "79D5336A-14AA-483E-9CBE-A7B53120B925"
            },
            {
              "criteria": "cpe:2.3:a:php:php:5.3.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9EF4B938-BB14-4C06-BEE9-10CA755C5DEF"
            },
            {
              "criteria": "cpe:2.3:a:php:php:5.3.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "981C922C-7A7D-473E-8C43-03AB62FB5B8B"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}