A vulnerability was found in GNU LibreDWG up to 0.14 . It has been rated as problematic . The affected element is the function match_BLOCK_HEADER of the file dwggrep.c of the component Dwggrep Utility . Performing a manipulation results in null pointer dereference. This vulnerability is reported as CVE-2026-9529 . The attack requires a local approach. Moreover, an exploit is present.