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CVE-1999-0721
Denial of service in Windows NT Local Security Authority (LSA) through a malformed LSA request.
High7.8EPSS 8.5%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Denial of service in Windows NT Local Security Authority (LSA) through a malformed LSA request.
Timeline
ID reserved
By mitre
- 40 days later
· 40 days later
Published
- 25 years later
· 25 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 8.5% · top 5.0% of all CVEs (7 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
n/a
- affected n/a
References (3)
- J-049 (opens in a new tab)third-party-advisorygovernment-resourcex_refsource_CIACx_transferred
- MS99-020 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- Q231457 (opens in a new tab)vendor-advisoryx_refsource_MSKBx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-1999-0721)Record last updated .