CVE-2024-20446
Cisco NX-OS Software DHCPv6 Relay Agent Denial of Service Vulnerability
Severity
High 8.6
CVSS 3.1
Exploited
Not listed
EPSS
0.008
52.6th percentile
Discovered by
Third party
Published by the vendor
Published
Aug 28, 2024
Assigned by cisco
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 affected versions (5)
- Cisco · Cisco NX-OS Software
- cisco · nx-os
- cisco · nx-os
- cisco · nx-os
- cisco · nx-os