CVE-2026-9502 PUBLISHED

A vulnerability was identified in GNU LibreDWG up to 0.14. This affects the function decompress_R2004_section of the file src/decode.c of the component Dwgread Utility. The manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. The identifier of the patch is e501cb9926c1e9a07a0d1cc997f3e69e9be801c9. To fix this issue, it is recommended to deploy a patch.

• pwn3rd (VulDB User) reporter

• VDB-365484 | GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section heap-based overflow
• VDB-365484 | CTI Indicators (IOB, IOC, IOA)
• Submit #814259 | LibreDWG Project LibreDWG <= 0.14, main branch up to commit 6d6a339 (released 2026-04-10) Heap-based Buffer Overflow (CWE-122)
• https://github.com/LibreDWG/libredwg/issues/1243
• https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_overflow_decompress_R2004_section.dwg
• https://github.com/LibreDWG/libredwg/commit/e501cb9926c1e9a07a0d1cc997f3e69e9be801c9
• https://www.gnu.org/

• Heap-based Buffer Overflow CWE
• Memory Corruption CWE