CVE-2001-0505: Multiple memory leaks in Microsoft Services for Unix 2.0 allow remote attackers to cause a denial of servic...

Security readout for executives and security teams

CVE-2001-0505 is an old denial-of-service issue in Microsoft Services for Unix 2.0. A remote attacker could exhaust memory by sending many malformed requests to its Telnet or NFS service, potentially disrupting availability of systems still running that legacy software. Exposure is most likely limited to legacy Windows environments running Microsoft Services for Unix 2.0 with Telnet or NFS reachable. Modern environments are unlikely to use this product, but old servers, lab systems, or forgotten migration dependencies should be checked. Treat this as a legacy availability risk. It is not presented as actively exploited, but exposed Telnet or NFS on obsolete software can create preventable outage risk and should be removed, isolated, or remediated. Mitigation focus: Identify any Microsoft Services for Unix 2.0 installations.; Review Microsoft MS01-039 for vendor remediation or workaround guidance.; Disable Telnet or NFS services where they are not required..

Prepared

Jul 1, 2026, 08:27 UTC (UTC+00:00)

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