CVE-2000-0955

Status: ModifiedHigh (7.5)—💥 Exploit

Cisco Virtual Central Office 4000 (VCO/4K) uses weak encryption to store usernames and passwords in the SNMP MIB, which allows an attacker who knows the community name to crack the password and gain privileges.

CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Base score: 7.5

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.84%
Percentile among all scored CVEs: 78
Score date: 10/8/2026

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 · Cisco Virtual Central Office 4000 (VCO/4K) 5.1.3 - Remote Username / Password Retrieval (10/26/2000)

Affected technologies (1)

Cisco — Virtual Central Office 4000

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2000-0955",
  "cveTags": [],
  "metrics": {
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      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": true,
        "userInteractionRequired": false
      }
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  },
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      "affectedData": [
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          "versions": [
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  ],
  "published": "2000-12-19T05:00:00.000",
  "references": [
    {
      "url": "http://www.atstake.com/research/advisories/2000/a102600-1.txt",
      "tags": [
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        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/1885",
      "tags": [
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      "source": "cve@mitre.org"
    },
    {
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      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.atstake.com/research/advisories/2000/a102600-1.txt",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
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    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cisco Virtual Central Office 4000 (VCO/4K) uses weak encryption to store usernames and passwords in the SNMP MIB, which allows an attacker who knows the community name to crack the password and gain privileges."
    },
    {
      "lang": "es",
      "value": "Cisco Virtual Central Office 4000 (VCO/4K) usa cifrado débil para almacenar nombres de usuario y contraseñas en la MIB SNMP, lo que permite a un atacante que conoce el nombre de la comunidad descifrar la contraseña y obtener privilegios."
    }
  ],
  "lastModified": "2026-09-23T13:10:00.153",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:virtual_central_office_4000:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "643BB7C9-FAB0-475E-8425-C5E0EFB5CEA3",
              "versionEndIncluding": "5.1.3"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}