CVE-2026-107614

An integer underflow in WinCursorShapeUtils::trimTransparent in GlavSoft TightVNC Server for Windows before 2.8.88 allows a local authenticated user to crash the server, and potentially read out-of-bounds memory, by causing a cursor shape with a width or height of zero to be processed on the DXGI...

EUVD-2026-94978

An integer underflow in WinCursorShapeUtils::trimTransparent in GlavSoft TightVNC Server for Windows before 2.8.88 allows a local authenticated user to crash the server, and potentially read out-of-bounds memory, by causing a cursor shape with a width or height of zero to be processed on the DXGI...

CVE-2026-107613

GlavSoft TightVNC Server for Windows versions before 2.8.88 contains a NULL pointer dereference vulnerability in the Win8ScreenDriver component. The issue occurs when the DXGI Desktop Duplication driver fails to re-initialize during the applyNewScreenProperties() function (e.g., following a GPU r...