CVE-2001-0507: IIS 5.0 uses relative paths to find system files that will run in-process, which allows local users to gain...

Security readout for executives and security teams

CVE-2001-0507 is an old Microsoft IIS 5.0 privilege escalation issue. IIS may use relative paths when locating in-process system files, letting a local user place a Trojan horse file and gain higher privileges. This matters mainly where legacy IIS 5.0 remains in production, labs, or inherited images. Exposure is most likely limited to systems still running IIS 5.0. The described attacker position is local user access, so external exposure depends on whether an attacker can first obtain a local account or code execution on the host. Treat this as a legacy-risk cleanup item unless IIS 5.0 is still present. If present on business systems, prioritize remediation because local compromise could become administrative control. If absent, record the inventory evidence and close. Mitigation focus: Identify any remaining IIS 5.0 installations or inherited server images.; Review Microsoft MS01-044 for the vendor-approved update or workaround.; Prioritize retirement or isolation of unsupported legacy IIS systems..

Prepared

Jul 1, 2026, 08:03 UTC (UTC+00:00)

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