CVE-1999-0391

HIGH · CVSS 7.5 EPSS 4.89%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 1999-01-05 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It affects Windows.

CVE

CVE-1999-0391

Severity

HIGH

CVSS

7.5

EPSS

4.89%

Windows

Original NVD 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.