Buffer Overflow Vulnerability in TightVNC Viewer's tvnviewer.exe Allows Remote Code Execution

CVE-2021-42785 · CRITICAL Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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