CVE-2025-20340
7.4
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Summary
A vulnerability in the Address Resolution Protocol (ARP) implementation of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to trigger a broadcast storm, leading to a denial of service (DoS) condition on an affected device.
This vulnerability is due to how Cisco IOS XR Software processes a high, sustained rate of ARP traffic hitting the management interface. Under certain conditions, an attacker could exploit this vulnerability by sending an excessive amount of traffic to the management interface of an affected device, overwhelming its ARP processing capabilities. A successful exploit could result in degraded device performance, loss of management connectivity, and complete unresponsiveness of the system, leading to a DoS condition.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Cisco | Cisco IOS XR Software | 6.5.3 | affected |
| Cisco | Cisco IOS XR Software | 6.5.29 | affected |
| Cisco | Cisco IOS XR Software | 6.5.1 | affected |
| Cisco | Cisco IOS XR Software | 6.6.1 | affected |
| Cisco | Cisco IOS XR Software | 6.5.2 | affected |
| Cisco | Cisco IOS XR Software | 6.5.92 | affected |
| Cisco | Cisco IOS XR Software | 6.5.15 | affected |
| Cisco | Cisco IOS XR Software | 6.6.2 | affected |
| Cisco | Cisco IOS XR Software | 7.0.1 | affected |
| Cisco | Cisco IOS XR Software | 6.6.25 | affected |
| Cisco | Cisco IOS XR Software | 6.5.26 | affected |
| Cisco | Cisco IOS XR Software | 6.6.11 | affected |
| Cisco | Cisco IOS XR Software | 6.5.25 | affected |
| Cisco | Cisco IOS XR Software | 6.5.28 | affected |
| Cisco | Cisco IOS XR Software | 6.5.93 | affected |
| Cisco | Cisco IOS XR Software | 6.6.12 | affected |
| Cisco | Cisco IOS XR Software | 6.5.90 | affected |
| Cisco | Cisco IOS XR Software | 7.0.0 | affected |
| Cisco | Cisco IOS XR Software | 7.1.1 | affected |
| Cisco | Cisco IOS XR Software | 7.0.90 | affected |
| Cisco | Cisco IOS XR Software | 6.6.3 | affected |
| Cisco | Cisco IOS XR Software | 6.7.1 | affected |
| Cisco | Cisco IOS XR Software | 7.0.2 | affected |
| Cisco | Cisco IOS XR Software | 7.1.15 | affected |
| Cisco | Cisco IOS XR Software | 7.2.0 | affected |
| Cisco | Cisco IOS XR Software | 7.2.1 | affected |
| Cisco | Cisco IOS XR Software | 7.1.2 | affected |
| Cisco | Cisco IOS XR Software | 6.7.2 | affected |
| Cisco | Cisco IOS XR Software | 7.0.11 | affected |
| Cisco | Cisco IOS XR Software | 7.0.12 | affected |
| Cisco | Cisco IOS XR Software | 7.0.14 | affected |
| Cisco | Cisco IOS XR Software | 7.1.25 | affected |
| Cisco | Cisco IOS XR Software | 6.6.4 | affected |
| Cisco | Cisco IOS XR Software | 7.2.12 | affected |
| Cisco | Cisco IOS XR Software | 7.3.1 | affected |
| Cisco | Cisco IOS XR Software | 7.1.3 | affected |
| Cisco | Cisco IOS XR Software | 6.7.3 | affected |
| Cisco | Cisco IOS XR Software | 7.4.1 | affected |
| Cisco | Cisco IOS XR Software | 7.2.2 | affected |
| Cisco | Cisco IOS XR Software | 6.7.4 | affected |
| Cisco | Cisco IOS XR Software | 6.5.31 | affected |
| Cisco | Cisco IOS XR Software | 7.3.15 | affected |
| Cisco | Cisco IOS XR Software | 7.3.16 | affected |
| Cisco | Cisco IOS XR Software | 6.8.1 | affected |
| Cisco | Cisco IOS XR Software | 7.4.15 | affected |
| Cisco | Cisco IOS XR Software | 6.5.32 | affected |
| Cisco | Cisco IOS XR Software | 7.3.2 | affected |
| Cisco | Cisco IOS XR Software | 7.5.1 | affected |
| Cisco | Cisco IOS XR Software | 7.4.16 | affected |
| Cisco | Cisco IOS XR Software | 7.3.27 | affected |
| Cisco | Cisco IOS XR Software | 7.6.1 | affected |
| Cisco | Cisco IOS XR Software | 7.5.2 | affected |
| Cisco | Cisco IOS XR Software | 7.8.1 | affected |
| Cisco | Cisco IOS XR Software | 7.6.15 | affected |
| Cisco | Cisco IOS XR Software | 7.5.12 | affected |
| Cisco | Cisco IOS XR Software | 7.8.12 | affected |
| Cisco | Cisco IOS XR Software | 7.3.3 | affected |
| Cisco | Cisco IOS XR Software | 7.7.1 | affected |
| Cisco | Cisco IOS XR Software | 6.8.2 | affected |
| Cisco | Cisco IOS XR Software | 7.3.4 | affected |
| Cisco | Cisco IOS XR Software | 7.4.2 | affected |
| Cisco | Cisco IOS XR Software | 6.7.35 | affected |
| Cisco | Cisco IOS XR Software | 6.9.1 | affected |
| Cisco | Cisco IOS XR Software | 7.6.2 | affected |
| Cisco | Cisco IOS XR Software | 7.5.3 | affected |
| Cisco | Cisco IOS XR Software | 7.7.2 | affected |
| Cisco | Cisco IOS XR Software | 6.9.2 | affected |
| Cisco | Cisco IOS XR Software | 7.9.1 | affected |
| Cisco | Cisco IOS XR Software | 7.10.1 | affected |
| Cisco | Cisco IOS XR Software | 7.8.2 | affected |
| Cisco | Cisco IOS XR Software | 7.5.4 | affected |
| Cisco | Cisco IOS XR Software | 6.5.33 | affected |
| Cisco | Cisco IOS XR Software | 7.8.22 | affected |
| Cisco | Cisco IOS XR Software | 7.7.21 | affected |
| Cisco | Cisco IOS XR Software | 7.9.2 | affected |
| Cisco | Cisco IOS XR Software | 7.3.5 | affected |
| Cisco | Cisco IOS XR Software | 7.5.5 | affected |
| Cisco | Cisco IOS XR Software | 7.11.1 | affected |
| Cisco | Cisco IOS XR Software | 7.9.21 | affected |
| Cisco | Cisco IOS XR Software | 7.10.2 | affected |
| Cisco | Cisco IOS XR Software | 24.1.1 | affected |
| Cisco | Cisco IOS XR Software | 7.6.3 | affected |
| Cisco | Cisco IOS XR Software | 7.3.6 | affected |
| Cisco | Cisco IOS XR Software | 7.5.52 | affected |
| Cisco | Cisco IOS XR Software | 7.11.2 | affected |
| Cisco | Cisco IOS XR Software | 24.2.1 | affected |
| Cisco | Cisco IOS XR Software | 24.1.2 | affected |
| Cisco | Cisco IOS XR Software | 24.2.11 | affected |
| Cisco | Cisco IOS XR Software | 24.3.1 | affected |
| Cisco | Cisco IOS XR Software | 24.4.1 | affected |
| Cisco | Cisco IOS XR Software | 24.2.2 | affected |
| Cisco | Cisco IOS XR Software | 7.8.23 | affected |
| Cisco | Cisco IOS XR Software | 7.11.21 | affected |
| Cisco | Cisco IOS XR Software | 24.2.20 | affected |
| Cisco | Cisco IOS XR Software | 24.3.2 | affected |
| Cisco | Cisco IOS XR Software | 24.4.10 | affected |
| Cisco | Cisco IOS XR Software | 6.5.35 | affected |
| Cisco | Cisco IOS XR Software | 25.1.1 | affected |
| Cisco | Cisco IOS XR Software | 24.4.2 | affected |
| Cisco | Cisco IOS XR Software | 24.3.20 | affected |
| Cisco | Cisco IOS XR Software | 24.4.15 | affected |
| Cisco | Cisco IOS XR Software | 6.5.351 | affected |
| Cisco | Cisco IOS XR Software | 24.3.30 | affected |
| Cisco | Cisco IOS XR Software | 6.5.352 | affected |
| Cisco | Cisco IOS XR Software | 24.4.30 | affected |
Weaknesses
- CWE-400: Uncontrolled Resource Consumption
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.