cve-2022-20915
Vulnerability from cvelistv5
Published
2022-10-10 20:43
Modified
2024-09-16 18:56
Severity
Summary
Cisco IOS XE Software IPv6 VPN over MPLS Denial of Service Vulnerability
Impacted products
Show details on NVD website


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            "name": "20220928 Cisco IOS XE Software IPv6 VPN over MPLS Denial of Service Vulnerability",
            "tags": [
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            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-6vpe-dos-tJBtf5Zv"
          }
        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco IOS XE Software",
          "vendor": "Cisco",
          "versions": [
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              "status": "affected",
              "version": "n/a"
            }
          ]
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      ],
      "datePublic": "2022-09-28T00:00:00",
      "descriptions": [
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          "lang": "en",
          "value": "A vulnerability in the implementation of IPv6 VPN over MPLS (6VPE) with Zone-Based Firewall (ZBFW) of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error handling of an IPv6 packet that is forwarded from an MPLS and ZBFW-enabled interface in a 6VPE deployment. An attacker could exploit this vulnerability by sending a crafted IPv6 packet sourced from a device on the IPv6-enabled virtual routing and forwarding (VRF) interface through the affected device. A successful exploit could allow the attacker to reload the device, resulting in a DoS condition."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
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        "dateUpdated": "2022-10-10T00:00:00",
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        "shortName": "cisco"
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          "name": "20220928 Cisco IOS XE Software IPv6 VPN over MPLS Denial of Service Vulnerability",
          "tags": [
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      "source": {
        "advisory": "cisco-sa-iosxe-6vpe-dos-tJBtf5Zv",
        "defect": [
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        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco IOS XE Software IPv6 VPN over MPLS Denial of Service Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2022-20915",
    "datePublished": "2022-10-10T20:43:15.634756Z",
    "dateReserved": "2021-11-02T00:00:00",
    "dateUpdated": "2024-09-16T18:56:22.725Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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  }
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