CVE-1999-0987

CVE-1999-0987 is a critical-severity vulnerability in Microsoft Windows Nt with a CVSS 2.0 base score of 10.0. 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-287.

Key facts

Description

Windows NT does not properly download a system policy if the domain user logs into the domain with a space at the end of the domain name.

Frequently asked questions

What is CVE-1999-0987?
Windows NT does not properly download a system policy if the domain user logs into the domain with a space at the end of the domain name.
How severe is CVE-1999-0987?
CVE-1999-0987 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-1999-0987 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-1999-0987?
CVE-1999-0987 affects Microsoft Windows Nt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-0987?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-1999-0987 published?
CVE-1999-0987 was published on 1999-11-18 and last updated on 2026-06-16.

References

Affected products (1)

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