CVE-2026-9503 MEDIUM

CVE-2026-9503: GNU LibreDWG DWG File decode.c dwg_next_entity null pointer dereference

Vendor Gnu
Product LibreDWG
Weakness CWE-476
Published May 25, 2026
Last update May 26, 2026

CVSS base score

4.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A security flaw has been discovered in GNU LibreDWG up to 0.14. This impacts the function dwg_next_entity of the file src/decode.c of the component DWG File Handler. The manipulation results in null pointer dereference. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. The patch is identified as 8f03865f37f5d4ffd616fef802acc980be54d300. Upgrading the affected component is advised.

Key dates

02Disclosure timeline

May 25, 2026 CVE published
May 26, 2026 Record updated