CVE-2001-1497

Name: CVE-2001-1497
Creator: NVD / NIST
Published: 2001-12-31T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.05%

Last modified Jun 16, 2026

CVE-2001-1497 is a vulnerability of currently unknown severity. Microsoft Internet Explorer 4.0 through 6.0 could allow local users to differentiate between alphanumeric and non-alphanumeric characters used in a password by pressing certain control keys that jump between non-alphanumeric characters, which makes it easier to conduct a brute-force password guessing attack.. EPSS estimates a 2.05% chance of exploitation in the next 30 days.

Description

Microsoft Internet Explorer 4.0 through 6.0 could allow local users to differentiate between alphanumeric and non-alphanumeric characters used in a password by pressing certain control keys that jump between non-alphanumeric characters, which makes it easier to conduct a brute-force password guessing attack.

Metrics

EPSS Probability

2.05%

78.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Microsoft	Ie	4.0
Microsoft	Ie	4.0.1
Microsoft	Ie	4.1
Microsoft	Internet Explorer	4.0
Microsoft	Internet Explorer	4.0.1
Microsoft	Internet Explorer	5.5
Microsoft	Internet Explorer	6.0

References

Timeline

Published: Dec 31, 2001
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2001-1497?

How severe is CVE-2001-1497?

Severity scoring for CVE-2001-1497 is pending analysis. The EPSS model estimates a 2.05% probability of exploitation in the next 30 days.

How do I fix CVE-2001-1497?

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-2001-1497?

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

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Source: NVD / NIST