CVE catalog
CVE-2002-1336
tightvnc: CVE-2002-1336
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.40% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | tightvnc | sid | 1:1.3.10-11 | fixed |
| Debian | tightvnc | forky | 1:1.3.10-11 | fixed |
| Debian | tightvnc | trixie | 1:1.3.10-9 | fixed |
| Debian | tightvnc | bookworm | 1:1.3.10-7 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | tightvnc | source | sid | 1.2.6-1 | not yet assigned | Not reported | Not reported |
| Debian | tightvnc | source | forky | 1.2.6-1 | not yet assigned | Not reported | Not reported |
| Debian | tightvnc | source | trixie | 1.2.6-1 | not yet assigned | Not reported | Not reported |
| Debian | tightvnc | source | bookworm | 1.2.6-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [tightvncpasswd]Fixed
Source package: [tightvnc]
Details (2)
1:1.3.10-7· amd64 · bookwormFixed · Fixed:
1.2.6-1dsa · tightvnc · debian · bookworm; dsa · tightvnc · debian · 12
1:1.3.10-7· arm64 · bookwormFixed · Fixed:
1.2.6-1dsa · tightvnc · debian · bookworm; dsa · tightvnc · debian · 12
- [tightvncserver]Fixed
Source package: [tightvnc]
Details (2)
1:1.3.10-7· amd64 · bookwormFixed · Fixed:
1.2.6-1dsa · tightvnc · debian · bookworm; dsa · tightvnc · debian · 12
1:1.3.10-7· arm64 · bookwormFixed · Fixed:
1.2.6-1dsa · tightvnc · debian · bookworm; dsa · tightvnc · debian · 12
- [xtightvncviewer]Fixed
Source package: [tightvnc]
Details (2)
1:1.3.10-7· amd64 · bookwormFixed · Fixed:
1.2.6-1dsa · tightvnc · debian · bookworm; dsa · tightvnc · debian · 12
1:1.3.10-7· arm64 · bookwormFixed · Fixed:
1.2.6-1dsa · tightvnc · debian · bookworm; dsa · tightvnc · debian · 12
[Debian 13 (Trixie)]
- [tightvncpasswd]Fixed
Source package: [tightvnc]
Details (2)
1:1.3.10-9· amd64 · trixieFixed · Fixed:
1.2.6-1dsa · tightvnc · debian · 13
1:1.3.10-9+b1· arm64 · trixieFixed · Fixed:
1.2.6-1dsa · tightvnc · debian · 13
- [tightvncserver]Fixed
Source package: [tightvnc]
Details (2)
1:1.3.10-9· amd64 · trixieFixed · Fixed:
1.2.6-1dsa · tightvnc · debian · 13
1:1.3.10-9+b1· arm64 · trixieFixed · Fixed:
1.2.6-1dsa · tightvnc · debian · 13
- [xtightvncviewer]Fixed
Source package: [tightvnc]
Details (2)
1:1.3.10-9· amd64 · trixieFixed · Fixed:
1.2.6-1dsa · tightvnc · debian · 13
1:1.3.10-9+b1· arm64 · trixieFixed · Fixed:
1.2.6-1dsa · tightvnc · debian · 13
Observed: