CVE-2002-0421

Name: CVE-2002-0421
Creator: NVD / NIST
Published: 2002-08-12T04:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 20.04%

Last modified Jun 16, 2026

CVE-2002-0421 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 20.04% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

20.04%

97.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Microsoft	Windows Nt	4.0

References

http://online.securityfocus.com/archive/1/259963Vendor Advisory
http://www.iss.net/security_center/static/8388.phpPatch, Vendor Advisory
http://www.securityfocus.com/bid/4236Patch, Vendor Advisory
http://online.securityfocus.com/archive/1/259963Vendor Advisory
http://www.iss.net/security_center/static/8388.phpPatch, Vendor Advisory
http://www.securityfocus.com/bid/4236Patch, Vendor Advisory

Timeline

Published: Aug 12, 2002
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2002-0421?

How severe is CVE-2002-0421?

Severity scoring for CVE-2002-0421 is pending analysis. The EPSS model estimates a 20.04% probability of exploitation in the next 30 days.

How do I fix CVE-2002-0421?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2002-0421?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST