IIS 4.0 allows local users to bypass the "User cannot change password" policy for Windows…
Priority MEDIUM 41Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
IIS 4.0 allows local users to bypass the "User cannot change password" policy for Windows NT by directly calling .htr password changing programs in the /iisadmpwd directory, including (1) aexp2.htr, (2) aexp2b.htr, (3) aexp3.htr , or (4) aexp4.htr.
Why it matters now
EPSS 0.2004 97th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_nt:4.0:*:server:*:*:*:*:* | 4.0 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp1:server:*:*:*:*:* | 4.0 sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp2:server:*:*:*:*:* | 4.0 sp2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp3:server:*:*:*:*:* | 4.0 sp3 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp4:server:*:*:*:*:* | 4.0 sp4 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp5:server:*:*:*:*:* | 4.0 sp5 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp6:server:*:*:*:*:* | 4.0 sp6 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:server:*:*:*:*:* | 4.0 sp6a | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_nt:4.0:*:server:*:*:*:*:* Versions 4.0 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp1:server:*:*:*:*:* Versions 4.0 sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp2:server:*:*:*:*:* Versions 4.0 sp2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp3:server:*:*:*:*:* Versions 4.0 sp3 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp4:server:*:*:*:*:* Versions 4.0 sp4 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp5:server:*:*:*:*:* Versions 4.0 sp5 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp6:server:*:*:*:*:* Versions 4.0 sp6 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:server:*:*:*:*:* Versions 4.0 sp6a Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2002-0421
- 2026-10-03 Alias added: GHSA-4whv-v2mh-gv8p
References
Patch 1
More Microsoft Windows Nt vulnerabilities
- TI-2004-00181 The POSIX component of Microsoft Windows NT and Windows 2000 allows local users to… KEVCVSS 3.1HIGH 7.8
- TI-2002-00354 smss.exe debugging subsystem in Windows NT and Windows 2000 does not properly… KEVCVSS 3.1HIGH 7.8
- TI-2004-00977 The WINS service (wins.exe) on Microsoft Windows NT Server 4.0, Windows 2000 Server, and… CVSS 2.0HIGH 10.0
- TI-2002-00376 Integer overflow in xdr_array function in RPC servers for operating systems that use… CVSS 3.1CRITICAL 9.8
- TI-2000-01078 Buffer overflow in Microsoft Phone Book Service allows local users to execute arbitrary… CVSS 2.0HIGH 10.0
- TI-1999-00824 Buffer overflow in IIS 4.0 allows remote attackers to cause a denial of service via a… CVSS 2.0HIGH 10.0
Sources
- CVE-2002-0421 · CVE Program
- CVE-2002-0421 · NVD
- FIRST EPSS
- GHSA-4whv-v2mh-gv8p · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences