CVE-2024-20259

A vulnerability in the DHCP snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of servi

Severity
High 8.6
CVSS 3.1
Remote · no auth what this means
Exploited
Not listed
EPSS
0.008
55.6th percentile
Discovered by
Vendor
Vendor-published field
Published
Mar 27, 2024
Assigned by cisco

Description

A vulnerability in the DHCP snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to a crafted IPv4 DHCP request packet being mishandled when endpoint analytics are enabled. An attacker could exploit this vulnerability by sending a crafted DHCP request through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Note: The attack vector is listed as network because a DHCP relay anywhere on the network could allow exploits from networks other than the adjacent one.

Weakness: CWE-122

Affected products

Vendor Product Category Matched by
Cisco Cisco IOS XE Software Routing & Switching cna-assigner
Vendor-reported products (2)
  • Cisco · Cisco IOS XE Software
  • cisco · ios_xe

Vendor advisory

cisco-sa-dhcp-dos-T3CXPO9z

Cisco IOS XE Software DHCP Snooping with Endpoint Analytics Denial of Service Vulnerability

Cisco’s rating: High (advisory CVSS 8.6) · Published Mar 27, 2024

Bug ID: CSCwh59449

The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from

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