CVE-1999-1455

Name: CVE-1999-1455
Creator: NVD / NIST
Published: 1999-12-31T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.94%

Last modified Jun 16, 2026

CVE-1999-1455 is a vulnerability of currently unknown severity. RSH service utility RSHSVC in Windows NT 3.5 through 4.0 does not properly restrict access as specified in the .Rhosts file when a user comes from an authorized host, which could allow unauthorized users to access the service by logging in from an authorized host.. EPSS estimates a 3.94% chance of exploitation in the next 30 days.

Description

RSH service utility RSHSVC in Windows NT 3.5 through 4.0 does not properly restrict access as specified in the .Rhosts file when a user comes from an authorized host, which could allow unauthorized users to access the service by logging in from an authorized host.

Metrics

EPSS Probability

3.94%

89.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Microsoft	Windows Nt	<= 4.0

References

Timeline

Published: Dec 31, 1999
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-1999-1455?

How severe is CVE-1999-1455?

Severity scoring for CVE-1999-1455 is pending analysis. The EPSS model estimates a 3.94% probability of exploitation in the next 30 days.

How do I fix CVE-1999-1455?

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-1999-1455?

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

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Source: NVD / NIST