CVE-2026-77658

A stack-based buffer overflow in the Dia diagram editor (0.98.0 and earlier) occurs when processing Network Bus objects from XML project files. In bus_load(), the bus_handles count is read without an upper bound and later passed to g_alloca() in bus_handle_moved(), allocating two stack arrays pro...

PT-2026-82089

A stack-based buffer overflow vulnerability exists in the Dia diagram editor when processing Network Bus objects from Dia XML project files. In objects/network/bus.c, bus load reads the number of bus handles from the file attribute "bus handles" using attribute num data without validating an uppe...