CVE-2009-2044

Status: ModifiedMedium (4.3)—💥 Exploit

Mozilla Firefox 3.0.10 and earlier on Linux allows remote attackers to cause a denial of service (application crash) via a URI for a large GIF image in the BACKGROUND attribute of a BODY element.

CVSS

Version: 2.0
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Base score: 4.3

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 5.89%
Percentile among all scored CVEs: 93
Score date: 10/14/2026

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).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · Mozilla Firefox 3.0.x - Large '.GIF' File Background Denial of Service (5/10/2009)

Affected technologies (1)

Mozilla — Firefox

CWEs

CWE-20

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2009-2044",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2009-06-12T21:30:00.483",
  "references": [
    {
      "url": "http://e-rdc.org/v1/news.php?readmore=137",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/504214",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/35280",
      "tags": [
        "Patch",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=496265",
      "tags": [
        "Issue Tracking"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/51037",
      "tags": [
        "VDB Entry"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://e-rdc.org/v1/news.php?readmore=137",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/504214",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/35280",
      "tags": [
        "Patch",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=496265",
      "tags": [
        "Issue Tracking"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/51037",
      "tags": [
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mozilla Firefox 3.0.10 and earlier on Linux allows remote attackers to cause a denial of service (application crash) via a URI for a large GIF image in the BACKGROUND attribute of a BODY element."
    },
    {
      "lang": "es",
      "value": "Mozilla Firefox 3.0.10 y anteriores en Linux permite a atacantes remotos producir una denegación de servicio (caída de aplicación) a través de un URI para una imagen GIF en el atributo \"BACKGROUND\" de un elemento \"BODY\""
    }
  ],
  "lastModified": "2026-06-16T23:08:38.927",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E05337C3-04A1-4403-84BE-78FCDF83448D",
              "versionEndIncluding": "3.0.10"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}