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CVE-2009-4920

Status: ModifiedHigh (7.8)—

Unspecified vulnerability in CTM on Cisco Adaptive Security Appliances (ASA) 5580 series devices with software 8.1(2) allows remote attackers to cause a denial of service (watchdog traceback) via a large amount of small-packet data, aka Bug ID CSCsu11412.

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 (1)

Cisco — ASA 5580

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2009-4920",
  "cveTags": [],
  "metrics": {
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      {
        "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": [
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              "status": "affected",
              "version": "n/a"
            }
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      ]
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  ],
  "published": "2010-06-29T18:30:01.707",
  "references": [
    {
      "url": "http://www.cisco.com/en/US/docs/security/asa/asa81/release/notes/asarn812.html",
      "tags": [
        "Patch"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.cisco.com/en/US/docs/security/asa/asa81/release/notes/asarn812.html",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
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    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Unspecified vulnerability in CTM on Cisco Adaptive Security Appliances (ASA) 5580 series devices with software 8.1(2) allows remote attackers to cause a denial of service (watchdog traceback) via a large amount of small-packet data, aka Bug ID CSCsu11412."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad no especificada de CTM en dispositivos Cisco Adaptive Security Appliances (ASA) de la serie 5580 con versión de software anterior a v8.1(2) permite a atacantes remotos provocar una denegación de servicio (rastreo vigilado) a través de una gran cantidad de pequeños paquetes de datos, también conocido como Bug ID CSCsu11412."
    }
  ],
  "lastModified": "2026-06-16T23:14:36.353",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:cisco:asa_5580:*:*:*:*:*:*:*:*",
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              "matchCriteriaId": "73E464BF-EEFB-4D23-9F86-B41B4850223E",
              "versionEndIncluding": "8.1\\(1\\)"
            }
          ],
          "operator": "OR"
        }
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  ],
  "sourceIdentifier": "cve@mitre.org"
}