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CVE

CVE-1999-0994

Windows NT with SYSKEY reuses the keystream that is used for encrypting SAM password hashes, allowing an attacker to cra

Windows NT with SYSKEY reuses the keystream that is used for encrypting SAM password hashes, allowing an attacker to crack passwords.

MEDIUM · CVSS 5 EPSS 0.1939
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 5% of all CVEs by exploitation likelihood
Sigma rules1 YARA rules0
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Affected Products & Versions

1
microsoft windows ntall versions
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Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumWow6432Node Windows NT CurrentVersion Autorun Keys Modification
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Scoring & Timeline

5
MEDIUM · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Published to NVD16 Dec 1999 · 05:00 AM
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References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://support.microsoft.com/default.aspx?scid=kb
http://www.securityfocus.com/bid/873
https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-056
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