Vulnerability in Cisco 807 Industrial Integrated Services Router
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 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.
EPSS: 0.004 (33.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Cisco 807_industrial_integrated_services_router
- Cisco 807_industrial_integrated_services_router_firmware
- Cisco 809_industrial_integrated_services_router
- Cisco 809_industrial_integrated_services_router_firmware
- Cisco 829_industrial_integrated_services_router
- Cisco 829_industrial_integrated_services_router_firmware
- Cisco Catalyst_9100
- Cisco Catalyst_9105
- Cisco Catalyst_9105ax
- Cisco Catalyst_9105axi
Weakness classification (CWE)
References
- psirt@cisco.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-20196?
- CVE-2025-20196 is a medium-severity vulnerability in Cisco 807 Industrial Integrated Services Router, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 5.3/10. Published 2025-05-07.
- How severe is CVE-2025-20196?
- Medium severity. CVSS v3 base score is 5.3 out of 10.