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CWE

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CVE-2026-9503

Published: May 25, 2026

Modified: May 26, 2026

PUBLISHED

CVSS v3.1

3.3

LOW

Description

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.

Vendor	Product	Versions
GNU	LibreDWG	affected `0.1` affected `0.2` affected `0.3` affected `0.4` affected `0.5` +9 more versions

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

References

VDB-365485 | GNU LibreDWG DWG File decode.c dwg_next_entity null pointer dereference

vdb-entry

technical-description

VDB-365485 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #814260 | 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/1245

issue-tracking

https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_oob_write_read_2004_compressed_section.dwg

exploit

https://github.com/LibreDWG/libredwg/commit/8f03865f37f5d4ffd616fef802acc980be54d300

patch

https://www.gnu.org/

product

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