Security readout for executives and security teams
A very old flaw in Microsoft's IIS web server let attackers crash or hijack the server by sending a specially crafted classic ASP web page. It affects legacy Windows web servers from the year 2000 era. Modern, supported Windows Server systems are not the target here, but any surviving legacy IIS box exposed to the internet would be at severe risk if reachable. Exposure today is limited to organizations still running unsupported IIS versions from the Windows NT/2000 era that process classic ASP. Any such server directly reachable from the internet or an untrusted network is highly exposed. Modern Windows Server and IIS releases have long since replaced this ISAPI parsing code path. Low priority for modern estates, high priority if any legacy Windows web server remains in production. Treat surviving IIS 4.0/5.0-era hosts as urgent decommission or isolation candidates. There is no business justification for exposing a 25-year-old, unsupported web server to untrusted networks. Mitigation focus: Retire or upgrade any legacy IIS servers still hosting classic ASP from Windows NT/2000-era builds.; Confirm current Microsoft support status for all IIS hosts and apply the latest vendor updates.; Restrict inbound access to any legacy web servers to trusted management networks only..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2000-1147 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- iis-isapi-asp-bo(5510)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.