CVE-2002-1336 — HIGH severity vulnerability (TightVNC before 1.2.6 generates the same challenge string fo)
TightVNC before 1.2.6 generates the same challenge string for multiple connections, which allows remote attackers to bypass VNC authentication by sniffing the challenge and response of other users.
| CVE ID | CVE-2002-1336 |
|---|---|
| Severity | HIGH |
| CVSS score | 7.5 |
| CVSS vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| CWE | NVD-CWE-Other |
| Status | Modified |
| Published | 2002-12-11 |
| Last modified | 2026-04-16 |
| Description | TightVNC before 1.2.6 generates the same challenge string for multiple connections, which allows remote attackers to bypass VNC authentication by sniffing the challenge and response of other users. |
| Source | NIST National Vulnerability Database |
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