CVE-1999-0391
highCVSS v3 Base Score
7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS Score
4.5%
Exploitation probability in 30 days
Top 11% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Confidentiality
P
Integrity
P
Availability
P
Published: January 5, 1999 (9991 days ago)
Last Modified: April 16, 2026
Vendor: Microsoft
Source: NVD
Vulnerability Report
Generated by CyberWatcher
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.
CWE
NVD-CWE-OtherAffected Products
microsoft terminal servermicrosoft windows 2000microsoft windows nt