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CVE-2007-5550

Status: ModifiedMedium (5)—
Severity5Medium · CVSS 2.0
Exploitation probability1.59 %higher than 75% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

Unspecified vulnerability in Cisco IOS allows remote attackers to obtain the IOS version via unspecified vectors involving a "common network service", aka PSIRT-1255024833. NOTE: as of 20071016, the only disclosure is a vague pre-advisory with no actionable information. However, since it is from a well-known researcher, it is being assigned a CVE identifier for tracking purposes.

CVSS

Base score
5
Version
2.0
Vector
AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
1.59 %
Percentile among all scored CVEs
75
Score date
10/22/2026

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).

Affected technologies (1)

Cisco — IOS

CWEs

References

Show 2 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2007-5550",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "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": "2007-10-18T20:17:00.000",
  "references": [
    {
      "url": "http://www.irmplc.com/index.php/111-Vendor-Alerts",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.irmplc.com/index.php/111-Vendor-Alerts",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Unspecified vulnerability in Cisco IOS allows remote attackers to obtain the IOS version via unspecified vectors involving a \"common network service\", aka PSIRT-1255024833.  NOTE: as of 20071016, the only disclosure is a vague pre-advisory with no actionable information.  However, since it is from a well-known researcher, it is being assigned a CVE identifier for tracking purposes."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad no especificada en Cisco IOS permite a atacantes remotos obtener la versión de IOS mediante vectores no especificados involucrando un \"servicio común de red\", también conocido como PSIRT-1255024833.\r\nNOTA: A fecha de 20071016, la única revelación es un vago pre-aviso sin información de uso inmediato. Sin embargo, dado que proviene de un investigador reputado, se le ha asignado un identificador CVE por temas de seguimiento."
    }
  ],
  "lastModified": "2026-06-16T22:46:22.960",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5802E2D8-7069-474C-826F-AEE7B50BFE34"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}