CVE-1999-0430

CVE-1999-0430 describes a denial-of-service vulnerability affecting Cisco Catalyst LAN switches running Catalyst 5000 supervisor software, as well as Catalyst 12xx and 29xx supervisor software. This flaw allows an unauthenticated remote attacker to force the supervisor module to reload, disrupting network services. Rated with a CVSS score of 5.0 (Medium), the vulnerability is easily exploitable over the network with low attack complexity, resulting in partial availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this decades-old vulnerability.