CVE-1999-0366: In some cases, Service Pack 4 for Windows NT 4.0 can allow access to network shares using a blank password, through a pr
Summary
In some cases, Service Pack 4 for Windows NT 4.0 can allow access to network shares using a blank password, through a problem with a null NT hash value.
Why It Matters
UNKNOWN severity with CVSS n/a.
Current Status
- Vulnerability status: Not listed in CISA KEV
- Last intelligence update: 2026-08-21 · source: NVD
Entity Activity Timeline
- 2026-08-21 — Intelligence record updated（NVD sync）
Severity
UNKNOWN
Source Attribution
Source: NVD · Updated: 2026-08-21T04:30:43.019Z · Confidence: high
Impact
Based on CVSS vector: n/a — assess confidentiality, integrity, and availability impact via the official vector documentation.
Affected Software
Fix
Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.
Sources & Evidence
- http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ214840
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-004
- http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ214840
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-004
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