CVE-2025-20149
A vulnerability in the CLI of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, local attacker to cause an affected device to reload unexpectedly, resulting in a denial of ser
Description
A vulnerability in the CLI of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, local attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to a buffer overflow. An attacker with a low-privileged account could exploit this vulnerability by using crafted commands at the CLI prompt. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
Weakness: CWE-120
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco IOS Software | Routing & Switching | cna-assigner |
| Cisco | Cisco IOS XE Software | Routing & Switching | cna-assigner |
Vendor-reported products (2)
- Cisco · IOS
- Cisco · Cisco IOS XE Software
Vendor advisory
Cisco IOS and IOS XE Software CLI Denial of Service Vulnerability
Cisco’s rating: Medium (advisory CVSS 6.5) · Published Sep 24, 2025
Bug ID: CSCwm86360
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from