CVE-2026-9529GNU LibreDWG Dwggrep Utility dwggrep.c match_BLOCK_HEADER null pointer dereference

Descripción

A security flaw has been discovered in GNU LibreDWG up to 0.14. 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. The attack requires a local approach. The exploit has been released to the public and may be used for attacks.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• VDB-365548 | GNU LibreDWG Dwggrep Utility dwggrep.c match_BLOCK_HEADER null pointer dereference vdb-entrytechnical-description
• VDB-365548 | CTI Indicators (IOB, IOC, IOA) signaturepermissions-required
• Submit #814273 | LibreDWG Project LibreDWG <= 0.14, main branch up to commit 6d6a339 (2026-04-10) NULL Pointer Dereference (CWE-476) third-party-advisory
• https://github.com/LibreDWG/libredwg/issues/1247 issue-tracking
• https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_oob_write_read_2004_compresse… exploit
• https://www.gnu.org/ product