The vulnerability of the ClientConnection::Copybuffer function in the VNC client of the remote desktop control software UltraVNC allows a hacker to execute arbitrary code.

The vulnerability of the ClientConnection::Copybuffer function in the VNC client software for remote desktop management, UltraVNC, is related to writing beyond the buffer boundaries in memory. Exploiting this vulnerability allows a malicious actor operating remotely to execute arbitrary code...

UltraVNC out-of-bounds access vulnerability (CNVD-2019-10288)

UltraVNC is an open source remote terminal control software for the Windows platform. A security vulnerability exists in the VNC client code in UltraVNC version 1207, which stems from the program incorrectly using the 'ClientConnection::Copybuffer' function. An attacker could exploit the...

CVE-2019-8266

CVE-2019-8266 affects UltraVNC revision 1207 where multiple out-of-bounds access vulnerabilities in the VNC client code (ClientConnection::Copybuffer) could lead to code execution. Exploitation is described as network‑based with user interaction required to trigger, and the issues were fixed in r...

CVE-2019-8266: Access of Memory Location After End of Buffer

UltraVNC revision 1207 has multiple out-of-bounds access vulnerabilities connected with improper usage of ClientConnection::Copybuffer function in VNC client code, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. User interaction is...

Design/Logic Flaw

UltraVNC revision 1207 has multiple out-of-bounds access vulnerabilities connected with improper usage of ClientConnection::Copybuffer function in VNC client code, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. User interaction is...

CVE-2019-8266

UltraVNC revision 1207 has multiple out-of-bounds access vulnerabilities connected with improper usage of ClientConnection::Copybuffer function in VNC client code, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. User interaction is...

PT-2019-4940

Name of the Vulnerable Software and Affected Versions UltraVNC revision 1207 Description The issue is related to improper usage of the ClientConnection::Copybuffer function in the VNC client code, which can result in out-of-bounds access and potentially allow code execution. This can be exploited...