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 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. It has a CVSS v3.1 base score of 8.6 (HIGH).

CVE-2024-20259 has a CVSS v3.1 score of 8.6 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

CVE-2024-20259 affects products from cisco, specifically: catalyst_9100, catalyst_9105, catalyst_9105ax, catalyst_9105axi, catalyst_9105axw, catalyst_9105i, catalyst_9105w, catalyst_9115, catalyst_9115_ap, catalyst_9115ax, catalyst_9115axe, catalyst_9115axi, catalyst_9117, catalyst_9117_ap, catalyst_9117ax, catalyst_9117axi, catalyst_9120, catalyst_9120_ap, catalyst_9120ax, catalyst_9120axe, catalyst_9120axi, catalyst_9120axp, catalyst_9124, catalyst_9124ax, catalyst_9124axd, catalyst_9124axi, catalyst_9124d, catalyst_9124e, catalyst_9124i, catalyst_9130, catalyst_9130_ap, catalyst_9130ax, catalyst_9130axe, catalyst_9130axi, catalyst_9136, catalyst_9162, catalyst_9164, catalyst_9166, catalyst_9166d1, catalyst_9200, catalyst_9200cx, catalyst_9200l, catalyst_9300, catalyst_9300-24p-a, catalyst_9300-24p-e, catalyst_9300-24s-a, catalyst_9300-24s-e, catalyst_9300-24t-a, catalyst_9300-24t-e, catalyst_9300-24u-a, catalyst_9300-24u-e, catalyst_9300-24ux-a, catalyst_9300-24ux-e, catalyst_9300-48p-a, catalyst_9300-48p-e, catalyst_9300-48s-a, catalyst_9300-48s-e, catalyst_9300-48t-a, catalyst_9300-48t-e, catalyst_9300-48u-a, catalyst_9300-48u-e, catalyst_9300-48un-a, catalyst_9300-48un-e, catalyst_9300-48uxm-a, catalyst_9300-48uxm-e, catalyst_9300l, catalyst_9300l-24p-4g-a, catalyst_9300l-24p-4g-e, catalyst_9300l-24p-4x-a, catalyst_9300l-24p-4x-e, catalyst_9300l-24t-4g-a, catalyst_9300l-24t-4g-e, catalyst_9300l-24t-4x-a, catalyst_9300l-24t-4x-e, catalyst_9300l-48p-4g-a, catalyst_9300l-48p-4g-e, catalyst_9300l-48p-4x-a, catalyst_9300l-48p-4x-e, catalyst_9300l-48t-4g-a, catalyst_9300l-48t-4g-e, catalyst_9300l-48t-4x-a, catalyst_9300l-48t-4x-e, catalyst_9300l_stack, catalyst_9300lm, catalyst_9300x, catalyst_9400, catalyst_9407r, catalyst_9600x, catalyst_9800, catalyst_9800-40, catalyst_9800-80, catalyst_9800-cl, catalyst_9800-l, catalyst_9800-l-c, catalyst_9800-l-f, dn-apl-tta-m, dn-apl-tta-m-rf, ios_xe. Check the affected products table above for specific version ranges.

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.