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CVE-2013-1136

Status: ModifiedMedium (4.6)—
Severity4.6Medium · CVSS 2.0
Exploitation probability0.16 %higher than 5% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

The crypto engine process in Cisco IOS on Aggregation Services Router (ASR) Route Processor 2 does not properly manage memory, which allows local users to cause a denial of service (route processor crash) by creating multiple tunnels and then examining encryption statistics, aka Bug ID CSCuc52193.

CVSS

Base score
4.6
Version
2.0
Vector
AV:L/AC:L/Au:S/C:N/I:N/A:C

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.16 %
Percentile among all scored CVEs
5
Score date
10/20/2026

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-2013-1136",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:S/C:N/I:N/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.1,
        "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": "2013-05-13T11:50:48.467",
  "references": [
    {
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1136",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1136",
      "tags": [
        "Vendor Advisory"
      ],
      "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 crypto engine process in Cisco IOS on Aggregation Services Router (ASR) Route Processor 2 does not properly manage memory, which allows local users to cause a denial of service (route processor crash) by creating multiple tunnels and then examining encryption statistics, aka Bug ID CSCuc52193."
    },
    {
      "lang": "es",
      "value": "El proceso del motor de cifrado en Cisco IOS sobre Aggregation Services Router (ASR) Router Processor 2 no administra adecuadamente la memoria, lo que permite a usuarios locales provocar una denegación de servicio (caída del procesador de rutas) mediante la creación de múltiples túneles y examinando después las estadísticas de cifrado. Aka Bug ID CSCuc52193."
    }
  ],
  "lastModified": "2026-06-16T23:50:54.073",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B6230A85-30D2-4934-A8A0-11499B7B09F8"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:cisco:aggregation_services_router_route_processor:2:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "AC790EFF-5C4D-41BF-BFA5-ABD69E931D7B"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}