CVEvulnerability

CVE-2002-2053

5.0 MEDIUM Published 2002-12-31 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2002-12-31
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P

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.

Affected configurations

• cisco ios 12.1

References