
CVE-2023-27830
https://notcve.org/view.php?id=CVE-2023-27830
12 Apr 2023 — TightVNC before v2.8.75 allows attackers to escalate privileges on the host operating system via replacing legitimate files with crafted files when executing a file transfer. This is due to the fact that TightVNC runs in the backend as a high-privileges account. • https://medium.com/nestedif/vulnerability-disclosure-privilege-escalation-tightvnc-8165208cce • CWE-269: Improper Privilege Management •

CVE-2021-42785 – Buffer Overflow in tvnviewer.exe via Crafted Packet in TightVNC Viewer 2.8.59
https://notcve.org/view.php?id=CVE-2021-42785
23 Nov 2021 — Buffer Overflow vulnerability in tvnviewer.exe of TightVNC Viewer allows a remote attacker to execute arbitrary instructions via a crafted FramebufferUpdate packet from a VNC server. Una vulnerabilidad de desbordamiento del búfer en el archivo tvnviewer.exe de TightVNC Viewer permite a un atacante remoto ejecutar instrucciones arbitrarias por medio de un paquete FramebufferUpdate diseñado desde un servidor VNC • https://www.tightvnc.com/whatsnew.php • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •

CVE-2002-1511
https://notcve.org/view.php?id=CVE-2002-1511
03 Mar 2003 — The vncserver wrapper for vnc before 3.3.3r2-21 uses the rand() function instead of srand(), which causes vncserver to generate weak cookies. • http://changelogs.credativ.org/debian/pool/main/v/vnc/vnc_3.3.6-3/changelog •

CVE-2002-1848
https://notcve.org/view.php?id=CVE-2002-1848
31 Dec 2002 — TightVNC before 1.2.4 running on Windows stores unencrypted passwords in the password text control of the WinVNC Properties dialog, which could allow local users to access passwords. • http://www.securityfocus.com/bid/4835 •

CVE-2002-1336
https://notcve.org/view.php?id=CVE-2002-1336
11 Dec 2002 — 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. TightVNC anterior a 1.2.6 genera la misma cadena de desafío a múltiples conexiones, lo que permite a atacantes remotos evitar la autenticación VNC espiando el desafio y la respuesta de otros usuarios. • http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000640 •

CVE-2002-0971
https://notcve.org/view.php?id=CVE-2002-0971
23 Aug 2002 — Vulnerability in VNC, TightVNC, and TridiaVNC allows local users to execute arbitrary code as LocalSystem by using the Win32 Messaging System to bypass the VNC GUI and access the "Add new clients" dialogue box. Vulnerabilidad en VNC, TightVNC, y TridiaVNC permite a usuarios locales ejecutar código arbitrario como LocalSystem usando el sistema de mensajes de Win32 para evitar el GUI (Interfaz Gráfico de Úsuario) y acceder al cuadro de diálogo "Añadir nuevos clientes" • http://marc.info/?l=bugtraq&m=102994289123085&w=2 •