CVE-2009-4658

CVE-2009-4658 describes a denial-of-service vulnerability in Xerver 4.32, where a remote authenticated user can crash the daemon by assigning a non-numeric web port in the management interface. This vulnerability can also be exploited by unauthenticated attackers when chained with CVE-2009-4657. With a CVSS score of 4.0 (AV:N/AC:L/Au:S/C:N/I:N/A:P), it indicates a low severity, requiring authentication for direct exploitation but having a high impact on availability. While not listed on CISA's KEV catalog, an exploit is publicly available on ExploitDB, though there is no evidence of active exploitation, Metasploit modules, or significant community discussion.