CVE-2002-2053
The design of the Hot Standby Routing Protocol (HSRP), as implemented on Cisco IOS 12.1, when...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2002-2053- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2002-2053- Updated
- 2026-11-02
EUVDEUVD-2002-2032 No score
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.
- Record
EUVD-2002-2032- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x5gf-75g3-pvq8 No score
The design of the Hot Standby Routing Protocol (HSRP), as implemented on Cisco IOS 12.1, when...
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.
- Record
GHSA-x5gf-75g3-pvq8- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2002-2053 is a medium vulnerability (CVSS 5.0) in Cisco Ios, published December 31, 2002. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.59%, the 75th percentile. No source names a fixed version.