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HIGH · 7.5

CVE-1999-0391

The cryptographic challenge of SMB authentication in Windows 95 and Windows 98 can be reused, allowing an attacker to replay the response and impersonate a user.

Vulnerability Description

The cryptographic challenge of SMB authentication in Windows 95 and Windows 98 can be reused, allowing an attacker to replay the response and impersonate a user.

CVSS Score

7.5

HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P
Confidentiality
PARTIAL
Integrity
PARTIAL
Availability
PARTIAL

Affected Products

VendorProductVersions
MicrosoftTerminal ServerAll versions
MicrosoftWindows 2000All versions
MicrosoftWindows Nt3.5.1

References

FAQ

What is CVE-1999-0391?

CVE-1999-0391 is a vulnerability with a CVSS score of 7.5 (HIGH). The cryptographic challenge of SMB authentication in Windows 95 and Windows 98 can be reused, allowing an attacker to replay the response and impersonate a user.

How severe is CVE-1999-0391?

CVE-1999-0391 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-1999-0391?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Terminal Server, Microsoft Windows 2000, Microsoft Windows Nt.