CVE-1999-0391
The cryptographic challenge of SMB authentication in Windows 95 and Windows 98 can be reused,...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-1999-0391- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-1999-0391- Updated
- 2026-11-02
EUVDEUVD-1999-0391 No score
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.
- Record
EUVD-1999-0391- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9xx2-9vgq-cg78 No score
The cryptographic challenge of SMB authentication in Windows 95 and Windows 98 can be reused,...
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.
- Record
GHSA-9xx2-9vgq-cg78- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-1999-0391 is a high vulnerability (CVSS 7.5) in Microsoft Terminal Server, published January 5, 1999. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.89%, the 92nd percentile. No source names a fixed version.