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vuln-cve/data/2025/20xxx/CVE-2025-20191.json
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{
"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": {
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"discovery": "EXTERNAL",
"defects": [
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},
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{
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"description": "Buffer Access with Incorrect Length Value",
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}
]
}
],
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"timestamp": "2025-05-07T18:56:29.479638Z",
"id": "CVE-2025-20191",
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