Vulnerability details
CVE-2025-20340
Cisco IOS XR Software
Cisco IOS XR Address Resolution Protocol Broadcast Storm Vulnerability
CVSS 3.1
7.4High
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.4High | 3.1 | CVEProject cvelistV5 (CNA) (cisco) | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Cisco | Cisco IOS XR Software | 24.1.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 24.1.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 24.2.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 24.2.11 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 24.2.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 24.2.20 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 24.3.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 24.3.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 24.3.20 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 24.3.30 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 24.4.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 24.4.10 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 24.4.15 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 24.4.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 24.4.30 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 25.1.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.15 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.25 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.26 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.28 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.29 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.31 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.32 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.33 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.35 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.351 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.352 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.90 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.92 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.5.93 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.6.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.6.11 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.6.12 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.6.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.6.25 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.6.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.6.4 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.7.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.7.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.7.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.7.35 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.7.4 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.8.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.8.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.9.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 6.9.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.0.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.0.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.0.11 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.0.12 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.0.14 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.0.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.0.90 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.1.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.1.15 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.1.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.1.25 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.1.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.10.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.10.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.11.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.11.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.11.21 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.2.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.2.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.2.12 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.2.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.3.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.3.15 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.3.16 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.3.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.3.27 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.3.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.3.4 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.3.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.3.6 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.4.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.4.15 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.4.16 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.4.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.5.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.5.12 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.5.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.5.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.5.4 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.5.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.5.52 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.6.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.6.15 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.6.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.6.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.7.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.7.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.7.21 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.8.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.8.12 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.8.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.8.22 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.8.23 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.9.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.9.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco IOS XR Software | 7.9.21 | CVEProject cvelistV5 (CNA) |
References and advisories
1
Kolun on Telegram @kolunsec
Exploited CVEs, key news and a daily digest
Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.
Details
- Published
- 2025-09-10
- Last updated
- 2025-09-10
- State
- Published
- Assigner (CNA)
- cisco
Exploit prediction (EPSS)
0.64%
Probability of exploitation in 30 days
50.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-400Uncontrolled Resource Consumption