Security readout for executives and security teams
This is an old IIS 4.0/5.0 source disclosure issue. A remote user could make the server process a requested file through the .HTR ISAPI extension and see source code for executable web programs. Business risk is exposure of credentials, application logic, or internal paths if any legacy IIS systems remain reachable. Exposure is most likely in legacy environments still running Microsoft IIS 4.0 or 5.0, especially Internet-facing servers with .HTR ISAPI handling enabled. Modern estates should still check old business systems, forgotten intranet hosts, and archived web applications. Treat as high priority only if legacy IIS 4.0/5.0 remains online. For most modern environments, the main action is confirming absence of old IIS exposure rather than emergency response. Mitigation focus: Inventory IIS 4.0 and 5.0 systems, including internal legacy web servers.; Review Microsoft MS01-004 for vendor remediation guidance and applicable updates.; Disable or remove unnecessary .HTR ISAPI handling where vendor guidance supports it..
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2001-0004 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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-read-files(5903)CVE reference · vdb-entry, x_refsource_XF
- MS01-004CVE reference · vendor-advisory, x_refsource_MS
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.