CVE-2024-20446
Cisco NX-OS Software DHCPv6 Relay Agent Denial of Service Vulnerability
Description
A vulnerability in the DHCPv6 relay agent of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of specific fields in a DHCPv6 RELAY-REPLY message. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to any IPv6 address that is configured on an affected device. A successful exploit could allow the attacker to cause the dhcp_snoop process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition.
Weakness: CWE-476
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco NX-OS Software | Routing & Switching | cna-assigner |
Vendor-reported products (5)
- Cisco · Cisco NX-OS Software
- cisco · nx-os
- cisco · nx-os
- cisco · nx-os
- cisco · nx-os
Vendor advisory
cisco-sa-nxos-dhcp6-relay-dos-znEAA6xn
Cisco NX-OS Software DHCPv6 Relay Agent Denial of Service Vulnerability
Cisco’s rating: High (advisory CVSS 8.6) · Published Aug 28, 2024
Bug IDs: CSCvz72834 , CSCwk27906
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from