Cisco IOS 11.1 through 12.2, when HSRP support is not enabled, allows remote attackers to cause a denial of service (CPU consumption) via randomly sized UDP packets to the Hot Standby Routing Protocol (HSRP) port 1985.
2002-12-31T05:00:00.000
2025-04-03T01:03:51.193
Deferred
CVSSv2: 5.0 (MEDIUM)
AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Operating System | cisco | ios | 11.1 | Yes |
Operating System | cisco | ios | 11.2 | Yes |
Operating System | cisco | ios | 12.0 | Yes |
Operating System | cisco | ios | 12.1 | Yes |
Operating System | cisco | ios | 12.2 | Yes |