CVE-2025-20196
A vulnerability in the Cisco IOx application hosting environment of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the Cisco IOx application host
Description
A vulnerability in the Cisco IOx application hosting environment of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the Cisco IOx application hosting environment to stop responding, resulting in a denial of service (DoS) condition. This vulnerability is due to the improper handling of HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to cause the Cisco IOx application hosting environment to stop responding. The IOx process will need to be manually restarted to recover services.
Weakness: CWE-307
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 IOx Application Hosting Environment Denial of Service Vulnerability
Cisco’s rating: Medium (advisory CVSS 5.3) · Published May 7, 2025
Bug ID: CSCwj81278
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from