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    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2023-20080",
        "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "assignerShortName": "cisco",
        "dateUpdated": "2024-10-28T16:32:31.260Z",
        "dateReserved": "2022-10-27T00:00:00",
        "datePublished": "2023-03-23T00:00:00"
    },
    "containers": {
        "cna": {
            "title": "Cisco IOS and IOS XE Software IPv6 DHCP (DHCPv6) Relay and Server Denial of Service Vulnerability",
            "datePublic": "2023-03-22T00:00:00",
            "providerMetadata": {
                "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
                "shortName": "cisco",
                "dateUpdated": "2023-03-23T00:00:00"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A vulnerability in the IPv6 DHCP version 6 (DHCPv6) relay and server features of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to insufficient validation of data boundaries. An attacker could exploit this vulnerability by sending crafted DHCPv6 messages to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly."
                }
            ],
            "affected": [
                {
                    "vendor": "Cisco",
                    "product": "Cisco IOS ",
                    "versions": [
                        {
                            "version": "n/a",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "name": "20230322 Cisco IOS and IOS XE Software IPv6 DHCP (DHCPv6) Relay and Server Denial of Service Vulnerability",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-dhcpv6-dos-44cMvdDK"
                }
            ],
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                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "CHANGED",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "availabilityImpact": "HIGH",
                        "baseScore": 8.6,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "lang": "en",
                            "description": "CWE-129",
                            "cweId": "CWE-129"
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            "source": {
                "advisory": "cisco-sa-ios-dhcpv6-dos-44cMvdDK",
                "defect": [
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                "discovery": "INTERNAL"
            },
            "exploits": [
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                    "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. "
                }
            ]
        },
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                        "name": "20230322 Cisco IOS and IOS XE Software IPv6 DHCP (DHCPv6) Relay and Server Denial of Service Vulnerability",
                        "tags": [
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                        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-dhcpv6-dos-44cMvdDK"
                    }
                ]
            },
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                "metrics": [
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                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-10-28T16:24:37.331170Z",
                                "id": "CVE-2023-20080",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
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                                        "Automatable": "yes"
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                                        "Technical Impact": "partial"
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                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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}