CVE-1999-0995 in the critical feed json
Windows NT Local Security Authority (LSA) allows remote attackers to cause a denial of service via malformed arguments to the LsaLookupSids…
published 1999-12-16 26 y ago modified 2026-06-16 4 mo ago also EUVD-1999-0976
- cvss
- 7.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 21.8%
- EPSS 21.8% chance of exploitation in 30 days, percentile 97%
- public exploits
- 0
- none known
Summary
Windows NT Local Security Authority (LSA) allows remote attackers to cause a denial of service via malformed arguments to the LsaLookupSids function which looks up the SID, aka "Malformed Security Identifier Request."
Exploit prediction
21.82% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
support.microsoft.com
/default.aspx?scid=kb%3B%5BLN%5D%3BQ248185
vendor-advisory
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/1999/ms99-057
vendor-advisory
-
securityfocus.com
/bid/875
vdb-entry
Sources
- CVE List CVE-1999-0995
- NVD CVE-1999-0995
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