{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2025-20191",
        "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "state": "PUBLISHED",
        "assignerShortName": "cisco",
        "dateReserved": "2024-10-10T19:15:13.226Z",
        "datePublished": "2025-05-07T17:18:35.677Z",
        "dateUpdated": "2025-05-07T19:46:53.825Z"
    },
    "containers": {
        "cna": {
            "title": "Multiple Cisco Products Denial of Service Vulnerability",
            "metrics": [
                {
                    "format": "cvssV3_1",
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
                        "baseScore": 7.4,
                        "baseSeverity": "HIGH",
                        "attackVector": "ADJACENT_NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "CHANGED",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "availabilityImpact": "HIGH"
                    }
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A vulnerability in the Switch Integrated Security Features (SISF) of Cisco IOS Software, Cisco IOS XE Software, Cisco NX-OS Software, and Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r\nThis vulnerability is due to the incorrect handling of DHCPv6 packets. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition."
                }
            ],
            "references": [
                {
                    "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sisf-dos-ZGwt4DdY",
                    "name": "cisco-sa-sisf-dos-ZGwt4DdY"
                }
            ],
            "exploits": [
                {
                    "lang": "en",
                    "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
                }
            ],
            "source": {
                "advisory": "cisco-sa-sisf-dos-ZGwt4DdY",
                "discovery": "EXTERNAL",
                "defects": [
                    "CSCvq14413"
                ]
            },
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Buffer Access with Incorrect Length Value",
                            "type": "cwe",
                            "cweId": "CWE-805"
                        }
                    ]
                }
            ],
            "affected": [
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                    "vendor": "Cisco",
                    "product": "Cisco NX-OS Software",
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                            "version": "8.4(2)",
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                        },
                        {
                            "version": "8.4(3)",
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                        },
                        {
                            "version": "9.2(3)",
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                            "status": "affected"
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                        {
                            "version": "7.0(3)I7(6z)",
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                        {
                            "version": "9.3(2)",
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                            "content": {
                                "timestamp": "2025-05-07T18:56:29.479638Z",
                                "id": "CVE-2025-20191",
                                "options": [
                                    {
                                        "Exploitation": "none"
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                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-05-07T19:46:53.825Z"
                }
            }
        ]
    }
}