Filtered by vendor Ultravnc Subscriptions
Filtered by product Vnc Viewer Subscriptions
Total 2 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2020-37134 1 Ultravnc 2 Ultravnc, Vnc Viewer 2026-03-05 7.5 High
UltraVNC Viewer 1.2.4.0 contains a denial of service vulnerability that allows attackers to crash the application by manipulating VNC Server input. Attackers can generate a malformed 256-byte payload and paste it into the VNC Server connection dialog to trigger an application crash.
CVE-2006-1652 1 Ultravnc 2 Tabbed Viewer, Vnc Viewer 2025-04-03 N/A
Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer 1.29 (1) allow user-assisted remote attackers to execute arbitrary code via a malicious server that sends a long string to a client that connects on TCP port 5900, which triggers an overflow in Log::ReallyPrint; and (2) allow remote attackers to cause a denial of service (server crash) via a long HTTP GET request to TCP port 5800, which triggers an overflow in VNCLog::ReallyPrint.