CVE-1999-1485: nsd in IRIX 6.5 through 6.5.2 exports a virtual filesystem on a UDP port, which allows remote attackers to...

Security readout for executives and security teams

This is a legacy SGI IRIX issue where the nsd service can expose a virtual filesystem over UDP. A remote attacker may be able to view files and potentially disrupt service by mounting that virtual filesystem. Business risk is mainly for organizations still operating IRIX 6.5 through 6.5.2 systems, especially if reachable from untrusted networks. Exposure is likely limited to legacy SGI IRIX 6.5 through 6.5.2 hosts running nsd with the relevant UDP service reachable. Internet-facing or partner-accessible legacy systems would carry the highest concern. Environments without IRIX or without reachable nsd are unlikely to be affected. Prioritize if the organization still runs IRIX 6.5 through 6.5.2, especially in exposed network zones. For most modern environments, urgency is low after confirming no affected legacy assets exist. The main executive action is asset discovery and isolation of unsupported systems. Mitigation focus: Inventory SGI IRIX systems and identify versions 6.5 through 6.5.2.; Check vendor or archived SGI guidance for official fixes or configuration changes.; Restrict untrusted UDP access to nsd and related legacy management services..

Prepared

Jul 1, 2026, 08:44 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.