Vulnerabilities > Cisco > IOS > 15.5.3.m11
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2023-03-23 | CVE-2023-20080 | Improper Validation of Array Index vulnerability in Cisco IOS and IOS XE A vulnerability in the IPv6 DHCP version 6 (DHCPv6) relay and server features of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. | 7.5 |
| 2022-10-10 | CVE-2022-20920 | Improper Handling of Exceptional Conditions vulnerability in Cisco IOS A vulnerability in the SSH implementation of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload. | 7.7 |
| 2021-09-23 | CVE-2021-1620 | Missing Release of Resource after Effective Lifetime vulnerability in Cisco IOS A vulnerability in the Internet Key Exchange Version 2 (IKEv2) support for the AutoReconnect feature of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to exhaust the free IP addresses from the assigned local pool. | 7.7 |
| 2021-09-23 | CVE-2021-34699 | Interpretation Conflict vulnerability in Cisco IOS and IOS XE A vulnerability in the TrustSec CLI parser of Cisco IOS and Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload. | 7.7 |
| 2021-09-23 | CVE-2021-34703 | Improper Initialization vulnerability in Cisco IOS A vulnerability in the Link Layer Discovery Protocol (LLDP) message parser of Cisco IOS Software and Cisco IOS XE Software could allow an attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. | 6.5 |
| 2021-09-23 | CVE-2021-34705 | Unspecified vulnerability in Cisco IOS and IOS XE A vulnerability in the Voice Telephony Service Provider (VTSP) service of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to bypass configured destination patterns and dial arbitrary numbers. | 5.3 |
| 2021-03-24 | CVE-2021-1377 | Unspecified vulnerability in Cisco IOS and IOS XE A vulnerability in Address Resolution Protocol (ARP) management of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to prevent an affected device from resolving ARP entries for legitimate hosts on the connected subnets. | 5.8 |
| 2020-06-03 | CVE-2020-3234 | Use of Hard-coded Credentials vulnerability in Cisco IOS A vulnerability in the virtual console authentication of Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) could allow an authenticated but low-privileged, local attacker to log in to the Virtual Device Server (VDS) of an affected device by using a set of default credentials. | 7.2 |
| 2020-06-03 | CVE-2020-3208 | Unspecified vulnerability in Cisco IOS A vulnerability in the image verification feature of Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) could allow an authenticated, local attacker to boot a malicious software image on an affected device. | 7.2 |
| 2020-06-03 | CVE-2020-3205 | OS Command Injection vulnerability in Cisco IOS A vulnerability in the implementation of the inter-VM channel of Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) could allow an unauthenticated, adjacent attacker to execute arbitrary shell commands on the Virtual Device Server (VDS) of an affected device. | 8.3 |