CVE-2002-0150: Buffer overflow in Internet Information Server (IIS) 4.0, 5.0, and 5.1 allows remote attackers to spoof the...

Security readout for executives and security teams

This is a remote buffer overflow in legacy Microsoft IIS versions. Malformed HTTP header field values can bypass a safety check, potentially crashing the web server or allowing arbitrary code execution. The main business concern is any forgotten, internet-facing IIS 4.0, 5.0, or 5.1 system still in service. Likely exposure is limited to legacy environments still running IIS 4.0, 5.0, or 5.1, especially public web servers. Cisco also published a related advisory for Microsoft IIS vulnerabilities in Cisco products, so affected Cisco-managed deployments should be checked against that notice. Treat this as urgent only if legacy IIS is still present, especially on the internet. If those versions are absent, business urgency is low. Because arbitrary code execution is possible, any confirmed exposure should be removed or remediated promptly. Mitigation focus: Identify and retire IIS 4.0, 5.0, and 5.1 systems where possible.; Apply Microsoft guidance from security bulletin MS02-018.; Check Cisco’s MS02-018 advisory for affected Cisco products..

Prepared

Jun 30, 2026, 14:58 UTC (UTC+00:00)

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