A vulnerability in the Cisco Express Forwarding functionality of Cisco IOS XE Software for Cisco ASR 903 Aggregation Services Routers with Route Switch Processor 3 (RSP3C) could allow an unauthenticated, adjacent attacker to trigger a denial of service (DoS) condition.
This vulnerability is due to improper memory management when Cisco IOS XE Software is processing Address Resolution Protocol (ARP) messages. An attacker could exploit this vulnerability by sending crafted ARP messages at a high rate over a period of time to an affected device. A successful exploit could allow the attacker to exhaust system resources, which eventually triggers a reload of the active route switch processor (RSP). If a redundant RSP is not present, the router reloads.
References
| Link | Resource |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asr903-rsp3-arp-dos-WmfzdvJZ | Vendor Advisory |
Configurations
Configuration 1 (hide)
| AND |
|
History
No history.
Information
Published : 2025-05-07 18:15
Updated : 2025-08-05 14:36
NVD link : CVE-2025-20189
Mitre link : CVE-2025-20189
CVE.ORG link : CVE-2025-20189
JSON object : View
Products Affected
cisco
- asr_903
- ios_xe
CWE
CWE-762
Mismatched Memory Management Routines
