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CVE-2004-2629

Status: ModifiedHigh (7.8)—

Multiple vulnerabilities in the H.323 protocol implementation for First Virtual Communications Click to Meet Express (when used with H.323 conferencing endpoints), Click to Meet Premier, Conference Server, and V-Gate allow remote attackers to cause a denial of service, as demonstrated by the NISCC/OUSPG PROTOS test suite for the H.225 protocol.

CVSS

Exploitation probability (EPSS)

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 (4)

First Virtual Communications — Click TO Meet ExpressFirst Virtual Communications — Click TO Meet PremierFirst Virtual Communications — Conference ServerFirst Virtual Communications — V-gate

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2004-2629",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "HIGH",
        "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": "2004-12-31T05:00:00.000",
  "references": [
    {
      "url": "http://secunia.com/advisories/11192",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://support.fvc.com/eng/docs/misc_docs/H.323_Security_Bulletin.pdf",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.cert.org/advisories/CA-2004-01.html",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.uniras.gov.uk/vuls/2004/006489/h323.htm",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/11192",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://support.fvc.com/eng/docs/misc_docs/H.323_Security_Bulletin.pdf",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.cert.org/advisories/CA-2004-01.html",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.uniras.gov.uk/vuls/2004/006489/h323.htm",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Multiple vulnerabilities in the H.323 protocol implementation for First Virtual Communications Click to Meet Express (when used with H.323 conferencing endpoints), Click to Meet Premier, Conference Server, and V-Gate allow remote attackers to cause a denial of service, as demonstrated by the NISCC/OUSPG PROTOS test suite for the H.225 protocol."
    }
  ],
  "lastModified": "2026-06-16T22:10:00.847",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:first_virtual_communications:click_to_meet_express:h.323:*:*:*:*:*:*:*",
              "vulnerable": true,
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            },
            {
              "criteria": "cpe:2.3:a:first_virtual_communications:click_to_meet_premier:h.323:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B2DAA0BB-FA0E-41D1-9885-B8C212017F6A"
            },
            {
              "criteria": "cpe:2.3:a:first_virtual_communications:conference_server:h.323:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1E861CDB-26C8-4133-94DF-463840FAB598"
            },
            {
              "criteria": "cpe:2.3:a:first_virtual_communications:v-gate:h.323:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7B97C3E4-E126-45B8-8E1D-B7FDC5608E2E"
            }
          ],
          "operator": "OR"
        }
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  ],
  "sourceIdentifier": "cve@mitre.org"
}