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CVE-2012-1311

Status: ModifiedHigh (7.8)—

The RSVP feature in Cisco IOS 15.0 and 15.1 and IOS XE 3.2.xS through 3.4.xS before 3.4.2S, when a VRF interface is configured, allows remote attackers to cause a denial of service (interface queue wedge and service outage) via crafted RSVP packets, aka Bug ID CSCts80643.

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 (2)

Cisco — IOSCisco — IOS XE

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2012-1311",
  "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": "2012-03-29T11:01:16.433",
  "references": [
    {
      "url": "http://osvdb.org/80692",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://secunia.com/advisories/48611",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://secunia.com/advisories/48621",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-rsvp",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/52754",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securitytracker.com/id?1026865",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://osvdb.org/80692",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/48611",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/48621",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-rsvp",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/52754",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id?1026865",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-399"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The RSVP feature in Cisco IOS 15.0 and 15.1 and IOS XE 3.2.xS through 3.4.xS before 3.4.2S, when a VRF interface is configured, allows remote attackers to cause a denial of service (interface queue wedge and service outage) via crafted RSVP packets, aka Bug ID CSCts80643."
    },
    {
      "lang": "es",
      "value": "La funcionalidad de gestión de tráfico RSVP en Cisco IOS v15.0 y v15.1 y en IOS XE v3.2.xS a v3.4.xS antes de v3.4.2S, cuando se configura una interfaz VRF, permite a atacantes remotos causar una denegación de servicio (error de procesamiento en la cola del interfaz e interrupción del servicio) a través de paquetes RSVP modificados a mano. Se trata de un problema también conocido como Bug ID CSCts80643."
    }
  ],
  "lastModified": "2026-06-16T23:39:22.520",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CF87CC9A-1AF5-4DB4-ACE5-DB938D3B2F84"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EB41294E-F3DF-4F1E-A4C8-E90B21A88836"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:3.2.0s:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "621845E0-E885-46E4-929D-55DBE43DC97F"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:3.2.1s:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "429F3E17-5C65-4C91-8881-AAEAA00BCD44"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:3.2.2s:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F47E76FF-DE36-463D-B610-A99C90AF7B91"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:3.3.0s:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BEF8A6EC-3C45-4CDB-81B5-4D50CD5C4087"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:3.4.0s:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "252377A3-7F15-45F2-A169-BBC37858D4DA"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}