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CVE-1999-0721

Denial of service in Windows NT Local Security Authority (LSA) through a malformed LSA request.

7.8 High

CVE-1999-0721 is a high vulnerability (CVSS 7.8) in Microsoft Windows Nt, published July 20, 1999. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 8.46%, the 95th percentile. No source names a fixed version.

Severity
7.8 HighCVSS 2.0, NVD
Exploit chance
8.46%EPSS, 95th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

Denial of service in Windows NT Local Security Authority (LSA) through a malformed LSA request.

Exploit likelihood

8.46%Up 2.3 points since Feb 4, 2022
90%50%10%1%

Affected products

What each source reports

NVD Score used7.8

Denial of service in Windows NT Local Security Authority (LSA) through a malformed LSA request.

Record
CVE-1999-0721
CVSS 2.0
7.8 HighAV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness
CWE-20
Updated
2026-11-02
CVE ListNo score

Denial of service in Windows NT Local Security Authority (LSA) through a malformed LSA request.

Record
CVE-1999-0721
Updated
2026-11-02
EUVDEUVD-1999-0702No score

Denial of service in Windows NT Local Security Authority (LSA) through a malformed LSA request.

Record
EUVD-1999-0702
Updated
2026-11-03
GitHub AdvisoriesGHSA-hr94-mwmh-6848No score

Denial of service in Windows NT Local Security Authority (LSA) through a malformed LSA request.

Denial of service in Windows NT Local Security Authority (LSA) through a malformed LSA request.

Record
GHSA-hr94-mwmh-6848
Weakness
CWE-20
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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