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CVE-2002-0197

Status: ModifiedHigh (7.5)—

psyBNC 2.3 beta and earlier allows remote attackers to spoof encrypted, trusted messages by sending lines that begin with the "[B]" sequence, which makes the message appear legitimate.

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)

Psychoid — Psybnc

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2002-0197",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "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
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2002-05-16T04:00:00.000",
  "references": [
    {
      "url": "http://marc.info/?l=bugtraq&m=101173478806580&w=2",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://online.securityfocus.com/archive/1/251832",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.iss.net/security_center/static/7985.php",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/3931",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=101173478806580&w=2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://online.securityfocus.com/archive/1/251832",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.iss.net/security_center/static/7985.php",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/3931",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "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": "psyBNC 2.3 beta and earlier allows remote attackers to spoof encrypted, trusted messages by sending lines that begin with the \"[B]\" sequence, which makes the message appear legitimate."
    },
    {
      "lang": "es",
      "value": "psyBNC 2.3 beta y anteriores permiten a atacantes remotos suplantar mensajes cifrados y autenticados enviando línes que comienzan con la secuencia \"\"[B]\"\", lo que hace al mensaje parecer legítimo."
    }
  ],
  "lastModified": "2026-06-16T21:56:58.560",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:psychoid:psybnc:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AD858BFC-5241-4BE8-8354-68BE727740F9",
              "versionEndIncluding": "2.3"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}