CVE-1999-0227

CVE-1999-0227 is a medium-severity vulnerability in Microsoft Windows Nt with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Description

Access violation in LSASS.EXE (LSA/LSARPC) program in Windows NT allows a denial of service.

Frequently asked questions

What is CVE-1999-0227?
Access violation in LSASS.EXE (LSA/LSARPC) program in Windows NT allows a denial of service.
How severe is CVE-1999-0227?
CVE-1999-0227 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-1999-0227 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0227?
CVE-1999-0227 affects Microsoft Windows Nt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-0227?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-0227 published?
CVE-1999-0227 was published on 1997-06-01 and last updated on 2026-06-16.

References

Affected products (1)

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