CVE-2026-9504

A weakness has been identified in GNU LibreDWG up to 0.14. Affected is the function bit_convert_TU of the file programs/dwggrep.c of the component Dwggrep Utility. This manipulation causes out-of-bounds read. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. Patch name: be996bf2178a40e98720f18c2414815d244413db. Applying a patch is the recommended action to fix this issue.

• CWE-119
• CWE-125

• https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_overflow_bit_convert_TU.dwg
• https://github.com/LibreDWG/libredwg/commit/be996bf2178a40e98720f18c2414815d244413db
• https://github.com/LibreDWG/libredwg/issues/1246
• https://vuldb.com/submit/814261
• https://vuldb.com/vuln/365486
• https://vuldb.com/vuln/365486/cti
• https://www.gnu.org/
• https://github.com/LibreDWG/libredwg/issues/1246

Published

May 25, 2026

Last Modified

Jul 23, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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