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CVE-2009-2869

Status: ModifiedHigh (7.8)—
Severity7.8High · CVSS 2.0
Exploitation probability2.85 %higher than 87% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

Unspecified vulnerability in Cisco IOS 12.2XNA, 12.2XNB, 12.2XNC, 12.2XND, 12.4MD, 12.4T, 12.4XZ, and 12.4YA allows remote attackers to cause a denial of service (device reload) via a crafted NTPv4 packet, aka Bug IDs CSCsu24505 and CSCsv75948.

CVSS

Base score
7.8
Version
2.0
Vector
AV:N/AC:L/Au:N/C:N/I:N/A:C

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
2.85 %
Percentile among all scored CVEs
87
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 12 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2009-2869",
  "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": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2009-09-28T19:30:01.467",
  "references": [
    {
      "url": "http://osvdb.org/58342",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=18889",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8131.shtml",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securitytracker.com/id?1022930",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2009/2759",
      "source": "psirt@cisco.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6712",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://osvdb.org/58342",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=18889",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8131.shtml",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id?1022930",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2009/2759",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6712",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Unspecified vulnerability in Cisco IOS 12.2XNA, 12.2XNB, 12.2XNC, 12.2XND, 12.4MD, 12.4T, 12.4XZ, and 12.4YA allows remote attackers to cause a denial of service (device reload) via a crafted NTPv4 packet, aka Bug IDs CSCsu24505 and CSCsv75948."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad sin especificar en Cisco IOS v12.2XNA, v12.2XNB, v12.2XNC, v12.2XND, v12.4MD, v12.4T, v12.4XZ y v12.4YA permite a usuarios remotos provocar una denegación de servicio (recarga del dispositivo) a través de un paquete NTPv4 modificado. También conocido como Bug IDs CSCsu24505 y CSCsv75948."
    }
  ],
  "lastModified": "2026-06-16T23:10:23.730",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.2xna:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DAD441B8-CC3C-4571-B095-C70B78BE80E9"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.2xnb:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "17AA0C3D-7C96-4D2E-91E5-232536245ABF"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.2xnc:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5D57ACB3-4ADC-4FBE-BA46-395F277B9997"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.2xnd:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E2916FA5-1FFF-48FB-A079-693AD3444CC1"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.4md:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A2222EED-6CB2-4D18-8AF5-FAE55BC6213F"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.4t:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BEAD7398-D1B2-47FB-952D-8C3162D5A363"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.4xz:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4963A243-74FA-43AD-9645-C9FAD527A6E1"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.4ya:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "31C6EACA-35BE-4032-93DA-5F738AEE0F4A"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.4yd:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "94E1421B-2B86-41B2-9288-59780E081337"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.4ye:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "51A5F5FF-6BC4-4A1E-B9F1-BD47096D30B2"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}