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CVE-2015-4285

Status: ModifiedMedium (5)—

The Local Packet Transport Services (LPTS) implementation in Cisco IOS XR 5.1.2, 5.1.3, 5.2.1, and 5.2.2 on ASR9k devices makes incorrect decisions about the opening of TCP and UDP ports during the processing of flow base entries, which allows remote attackers to cause a denial of service (resource consumption) by sending traffic to these ports continuously, aka Bug ID CSCur88273.

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)

Cisco — IOS XR

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2015-4285",
  "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:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "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": "2015-07-23T14:59:00.067",
  "references": [
    {
      "url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=40068",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1033043",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=40068",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1033043",
      "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 Local Packet Transport Services (LPTS) implementation in Cisco IOS XR 5.1.2, 5.1.3, 5.2.1, and 5.2.2 on ASR9k devices makes incorrect decisions about the opening of TCP and UDP ports during the processing of flow base entries, which allows remote attackers to cause a denial of service (resource consumption) by sending traffic to these ports continuously, aka Bug ID CSCur88273."
    },
    {
      "lang": "es",
      "value": "'Vulnerabilidad en la implementación del Local Packet Transport Services (LPTS) en los dispositivos Cisco IOS XR 5.1.2, 5.1.3, 5.2.1 y 5.2.2, y en los ASR9k, que toman decisiones incorrectas respecto a la apertura de puertos TCP y UDP durante el procesamiento de entradas de flujo base, lo que permite a atacantes remotos provocar una denegación de servicio (consumo de recursos) enviando continuamente tráfico a estos puertos, también conocido como ID CSCur88273."
    }
  ],
  "lastModified": "2026-06-17T00:27:02.737",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios_xr:5.1.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "61C1B066-9DED-46D7-9DF7-AB55DF01B80F"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xr:5.1.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "53E2D669-70EA-455E-BC9C-E97065502DD1"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xr:5.2.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "95175A2E-14DB-4730-93EA-2291ED7E0DFC"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xr:5.2.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AB5452CA-E4DF-49FD-A677-3F6257F14707"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}