CVE-2025-20189

HIGH EPSS 10.4%
Published May 7, 20251y ago · Modified Jun 17, 20262w ago
7.4 CVSS 3.1
High
Find Similar
Published May 7, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
7.4
Exploitability
2.8
Impact
4.0
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack Vector Adjacent
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
10.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-762

Affected Products 267

VendorProductVersionRange
ciscoios_xe3.16.0csany
ciscoios_xe3.16.0sany
ciscoios_xe3.16.1asany
ciscoios_xe3.16.1sany
ciscoios_xe3.16.2asany
ciscoios_xe3.16.2bsany
ciscoios_xe3.16.2sany
ciscoios_xe3.16.3asany
ciscoios_xe3.16.3sany
ciscoios_xe3.16.4asany
ciscoios_xe3.16.4bsany
ciscoios_xe3.16.4dsany
ciscoios_xe3.16.4sany
ciscoios_xe3.16.5sany
ciscoios_xe3.16.6bsany
ciscoios_xe3.16.6sany
ciscoios_xe3.16.7asany
ciscoios_xe3.16.7bsany
ciscoios_xe3.16.7sany
ciscoios_xe3.16.8sany
ciscoios_xe3.16.9sany
ciscoios_xe3.16.10sany
ciscoios_xe3.17.0sany
ciscoios_xe3.17.1asany
ciscoios_xe3.17.1sany
ciscoios_xe3.17.2sany
ciscoios_xe3.17.3sany
ciscoios_xe3.17.4sany
ciscoios_xe3.18.0asany
ciscoios_xe3.18.0sany
ciscoios_xe3.18.0spany
ciscoios_xe3.18.1aspany
ciscoios_xe3.18.1bspany
ciscoios_xe3.18.1cspany
ciscoios_xe3.18.1sany
ciscoios_xe3.18.1spany
ciscoios_xe3.18.2aspany
ciscoios_xe3.18.2sany
ciscoios_xe3.18.2spany
ciscoios_xe3.18.3aspany
ciscoios_xe3.18.3bspany
ciscoios_xe3.18.3sany
ciscoios_xe3.18.3spany
ciscoios_xe3.18.4sany
ciscoios_xe3.18.4spany
ciscoios_xe3.18.5spany
ciscoios_xe3.18.6spany
ciscoios_xe3.18.7spany
ciscoios_xe3.18.8aspany
ciscoios_xe3.18.9spany
ciscoios_xe16.1.1any
ciscoios_xe16.1.2any
ciscoios_xe16.1.3any
ciscoios_xe16.2.1any
ciscoios_xe16.2.2any
ciscoios_xe16.3.1any
ciscoios_xe16.3.1aany
ciscoios_xe16.3.2any
ciscoios_xe16.3.3any
ciscoios_xe16.3.4any
ciscoios_xe16.3.5any
ciscoios_xe16.3.5bany
ciscoios_xe16.3.6any
ciscoios_xe16.3.7any
ciscoios_xe16.3.8any
ciscoios_xe16.3.9any
ciscoios_xe16.3.10any
ciscoios_xe16.3.11any
ciscoios_xe16.4.1any
ciscoios_xe16.4.2any
ciscoios_xe16.4.3any
ciscoios_xe16.5.1any
ciscoios_xe16.5.1aany
ciscoios_xe16.5.1bany
ciscoios_xe16.5.2any
ciscoios_xe16.5.3any
ciscoios_xe16.6.1any
ciscoios_xe16.6.2any
ciscoios_xe16.6.3any
ciscoios_xe16.6.4any
ciscoios_xe16.6.4aany
ciscoios_xe16.6.5any
ciscoios_xe16.6.5aany
ciscoios_xe16.6.6any
ciscoios_xe16.6.7any
ciscoios_xe16.6.8any
ciscoios_xe16.6.9any
ciscoios_xe16.6.10any
ciscoios_xe16.7.1any
ciscoios_xe16.7.1aany
ciscoios_xe16.7.1bany
ciscoios_xe16.7.2any
ciscoios_xe16.7.3any
ciscoios_xe16.7.4any
ciscoios_xe16.8.1any
ciscoios_xe16.8.1aany
ciscoios_xe16.8.1bany
ciscoios_xe16.8.1cany
ciscoios_xe16.8.1dany
ciscoios_xe16.8.1eany
ciscoios_xe16.8.1sany
ciscoios_xe16.8.2any
ciscoios_xe16.8.3any
ciscoios_xe16.9.1any
ciscoios_xe16.9.1aany
ciscoios_xe16.9.1bany
ciscoios_xe16.9.1sany
ciscoios_xe16.9.2any
ciscoios_xe16.9.3any
ciscoios_xe16.9.3aany
ciscoios_xe16.9.4any
ciscoios_xe16.9.5any
ciscoios_xe16.9.5fany
ciscoios_xe16.9.6any
ciscoios_xe16.9.7any
ciscoios_xe16.9.8any
ciscoios_xe16.10.1any
ciscoios_xe16.10.1aany
ciscoios_xe16.10.1bany
ciscoios_xe16.10.1cany
ciscoios_xe16.10.1dany
ciscoios_xe16.10.1eany
ciscoios_xe16.10.1fany
ciscoios_xe16.10.1gany
ciscoios_xe16.10.1sany
ciscoios_xe16.10.2any
ciscoios_xe16.10.3any
ciscoios_xe16.11.1any
ciscoios_xe16.11.1aany
ciscoios_xe16.11.1bany
ciscoios_xe16.11.1sany
ciscoios_xe16.11.2any
ciscoios_xe16.12.1any
ciscoios_xe16.12.1aany
ciscoios_xe16.12.1cany
ciscoios_xe16.12.1sany
ciscoios_xe16.12.1tany
ciscoios_xe16.12.1wany
ciscoios_xe16.12.1xany
ciscoios_xe16.12.1yany
ciscoios_xe16.12.1z1any
ciscoios_xe16.12.1z2any
ciscoios_xe16.12.2any
ciscoios_xe16.12.2aany
ciscoios_xe16.12.2sany
ciscoios_xe16.12.3any
ciscoios_xe16.12.3aany
ciscoios_xe16.12.3sany
ciscoios_xe16.12.4any
ciscoios_xe16.12.4aany
ciscoios_xe16.12.5any
ciscoios_xe16.12.5aany
ciscoios_xe16.12.5bany
ciscoios_xe16.12.6any
ciscoios_xe16.12.6aany
ciscoios_xe16.12.7any
ciscoios_xe16.12.8any
ciscoios_xe16.12.9any
ciscoios_xe16.12.10any
ciscoios_xe16.12.10aany
ciscoios_xe16.12.11any
ciscoios_xe16.12.12any
ciscoios_xe16.12.13any
ciscoios_xe17.1.1any
ciscoios_xe17.1.1aany
ciscoios_xe17.1.1sany
ciscoios_xe17.1.1tany
ciscoios_xe17.1.3any
ciscoios_xe17.2.1any
ciscoios_xe17.2.1aany
ciscoios_xe17.2.1rany
ciscoios_xe17.2.1vany
ciscoios_xe17.2.2any
ciscoios_xe17.2.3any
ciscoios_xe17.3.1any
ciscoios_xe17.3.1aany
ciscoios_xe17.3.1wany
ciscoios_xe17.3.1xany
ciscoios_xe17.3.1zany
ciscoios_xe17.3.2any
ciscoios_xe17.3.2aany
ciscoios_xe17.3.3any
ciscoios_xe17.3.4any
ciscoios_xe17.3.4aany
ciscoios_xe17.3.4bany
ciscoios_xe17.3.4cany
ciscoios_xe17.3.5any
ciscoios_xe17.3.5aany
ciscoios_xe17.3.5bany
ciscoios_xe17.3.6any
ciscoios_xe17.3.7any
ciscoios_xe17.3.8any
ciscoios_xe17.3.8aany
ciscoios_xe17.4.1any
ciscoios_xe17.4.1aany
ciscoios_xe17.4.1bany
ciscoios_xe17.4.2any
ciscoios_xe17.4.2aany
ciscoios_xe17.5.1any
ciscoios_xe17.5.1aany
ciscoios_xe17.6.1any
ciscoios_xe17.6.1aany
ciscoios_xe17.6.1wany
ciscoios_xe17.6.1xany
ciscoios_xe17.6.1yany
ciscoios_xe17.6.1zany
ciscoios_xe17.6.1z1any
ciscoios_xe17.6.2any
ciscoios_xe17.6.3any
ciscoios_xe17.6.3aany
ciscoios_xe17.6.4any
ciscoios_xe17.6.5any
ciscoios_xe17.6.5aany
ciscoios_xe17.6.6any
ciscoios_xe17.6.6aany
ciscoios_xe17.6.7any
ciscoios_xe17.6.8any
ciscoios_xe17.6.8aany
ciscoios_xe17.7.1any
ciscoios_xe17.7.1aany
ciscoios_xe17.7.1bany
ciscoios_xe17.7.2any
ciscoios_xe17.8.1any
ciscoios_xe17.8.1aany
ciscoios_xe17.9.1any
ciscoios_xe17.9.1aany
ciscoios_xe17.9.1wany
ciscoios_xe17.9.1xany
ciscoios_xe17.9.1x1any
ciscoios_xe17.9.1yany
ciscoios_xe17.9.1y1any
ciscoios_xe17.9.2any
ciscoios_xe17.9.2aany
ciscoios_xe17.9.3any
ciscoios_xe17.9.3aany
ciscoios_xe17.9.4any
ciscoios_xe17.9.4aany
ciscoios_xe17.9.5any
ciscoios_xe17.9.5aany
ciscoios_xe17.9.5bany
ciscoios_xe17.9.5eany
ciscoios_xe17.9.5fany
ciscoios_xe17.9.6any
ciscoios_xe17.9.6aany
ciscoios_xe17.10.1any
ciscoios_xe17.10.1aany
ciscoios_xe17.10.1bany
ciscoios_xe17.11.1any
ciscoios_xe17.11.1aany
ciscoios_xe17.12.1any
ciscoios_xe17.12.1wany
ciscoios_xe17.12.1xany
ciscoios_xe17.12.1yany
ciscoios_xe17.12.1zany
ciscoios_xe17.12.1z1any
ciscoios_xe17.12.2any
ciscoios_xe17.12.2aany
ciscoios_xe17.12.3any
ciscoios_xe17.12.3aany
ciscoios_xe17.12.4any
ciscoios_xe17.12.4aany
ciscoios_xe17.12.4bany
ciscoios_xe17.13.1any
ciscoios_xe17.13.1aany
ciscoios_xe17.14.1any
ciscoios_xe17.14.1aany
ciscoasr_903*any

References 1

  • sec.cloudapps.cisco.com https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asr903-rsp3-arp-dos-WmfzdvJZ
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.