Description
The design of the Hot Standby Routing Protocol (HSRP), as implemented on Cisco IOS 12.1, when using IRPAS, allows remote attackers to cause a denial of service (CPU consumption) via a router with the same IP address as the interface on which HSRP is running, which causes a loop.
Metrics
CVSS 2.0 5.0/10
AV:N/AC:L/Au:N/C:N/I:N/A:PAffected software
No affected versions have been published.
Timeline
- Published
- Dec 31, 2002
- Last modified
- Jun 16, 2026
- NVD status
- Modified