Vulnerabilities > Cisco > IOS > 15.5.3.s1.2
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 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 |
| 2019-05-13 | CVE-2019-1649 | Improper Locking vulnerability in Cisco products A vulnerability in the logic that handles access control to one of the hardware components in Cisco's proprietary Secure Boot implementation could allow an authenticated, local attacker to write a modified firmware image to the component. | 6.7 |
| 2018-03-28 | CVE-2018-0158 | Missing Release of Resource after Effective Lifetime vulnerability in Cisco IOS and IOS XE A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak or a reload of an affected device that leads to a denial of service (DoS) condition. | 7.8 |