CVE-2021-1378

CVE-2021-1378 describes a denial-of-service vulnerability in the SSH service of Cisco StarOS, stemming from a logic error under specific traffic conditions. An unauthenticated, remote attacker can exploit this by sending crafted packets, causing the device to stop processing traffic. With a CVSS score of 7.5 (High), this vulnerability is remotely exploitable with low attack complexity, leading to a complete loss of availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.