Cisco Ios
625 CVEs affecting Cisco Ios. Latest disclosed: 2026-03-25. Critical: 6, High: 133.
| CVE | Severity | Score | Published | Summary |
|---|---|---|---|---|
CVE-2020-3258 | Critical | 9.8 | 2020-06-03 | Multiple vulnerabilities in Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected G… |
CVE-2020-3198 | Critical | 9.8 | 2020-06-03 | Multiple vulnerabilities in Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected G… |
CVE-2018-0171 | Critical | 9.8 | 2018-03-28 | A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reloa… |
CVE-2017-12240 | Critical | 9.8 | 2017-09-29 | The DHCP relay subsystem of Cisco IOS 12.2 through 15.6 and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker… |
CVE-2017-3881 | Critical | 9.8 | 2017-03-17 | A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote at… |
CVE-2025-20363 | Critical | 9.0 | 2025-09-25 | A vulnerability in the web services of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure Firewall Threat Defense (FTD) Software, C… |
CVE-2019-16009 | High | 8.8 | 2020-09-23 | A vulnerability in the web UI of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (C… |
CVE-2020-3234 | High | 8.8 | 2020-06-03 | A vulnerability in the virtual console authentication of Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and… |
CVE-2020-3217 | High | 8.8 | 2020-06-03 | A vulnerability in the Topology Discovery Service of Cisco One Platform Kit (onePK) in Cisco IOS Software, Cisco IOS XE Software, Cisco IOS XR Software, and Ci… |
CVE-2020-3205 | High | 8.8 | 2020-06-03 | A vulnerability in the implementation of the inter-VM channel of Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial IS… |
CVE-2020-3199 | High | 8.8 | 2020-06-03 | Multiple vulnerabilities in the Cisco IOx application environment of Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000… |
CVE-2019-12651 | High | 8.8 | 2019-09-25 | Multiple vulnerabilities in the web-based user interface (Web UI) of Cisco IOS XE Software could allow an authenticated, remote attacker to execute commands wi… |
CVE-2019-12650 | High | 8.8 | 2019-09-25 | Multiple vulnerabilities in the web-based user interface (Web UI) of Cisco IOS XE Software could allow an authenticated, remote attacker to execute commands wi… |
CVE-2019-12648 | High | 8.8 | 2019-09-25 | A vulnerability in the IOx application environment for Cisco IOS Software could allow an authenticated, remote attacker to gain unauthorized access to the Gues… |
CVE-2018-0255 | High | 8.8 | 2018-04-19 | A vulnerability in the device manager web interface of Cisco Industrial Ethernet Switches could allow an unauthenticated, remote attacker to conduct a cross-si… |
CVE-2018-0167 | High | 8.8 | 2018-03-28 | Multiple Buffer Overflow vulnerabilities in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR S… |
CVE-2017-6744 | High | 8.8 | 2017-07-17 | The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities that could allow an authenticated, r… |
CVE-2017-6743 | High | 8.8 | 2017-07-17 | The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities that could allow an authenticated, r… |
CVE-2017-6742 | High | 8.8 | 2017-07-17 | A vulnerability in the SNMP implementation of could allow an authenticated, remote attacker to cause a reload of the affected system or to remotely execute cod… |
CVE-2017-6740 | High | 8.8 | 2017-07-17 | The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities that could allow an authenticated, r… |