CVE-2005-0138

CVE-2005-0138 describes a flaw in rpc.mountd within SGI IRIX versions 6.5.25, 6.5.26, and 6.5.27, where it improperly restricts access for anonymous clients from systems with unresolvable hostnames. While initially noted as a security mechanism issue, its classification as a vulnerability is questionable due to the lack of an apparent attacker role. With a CVSS score of 7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P), it suggests potential for network-based exploitation with low complexity, leading to partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, indicating a low current threat landscape.