What’s Vulnerable › Vulnerabilities

CVE-1999-0366

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 1999-02-08 · updated 2026-06-16
• Weakness: CWE-287

Description

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.

Affected products

• Microsoft Windows Nt: 4.0-sp4

References

• 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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