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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.

PUBLISHED Reserved 2026-05-25 | Published 2026-05-25 | Updated 2026-05-26 | Assigner VulDB




MEDIUM: 4.8CVSS: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
LOW: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
LOW: 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
1.7AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C

Problem types

NULL Pointer Dereference

Denial of Service

Product status

0.1
affected

0.2
affected

0.3
affected

0.4
affected

0.5
affected

0.6
affected

0.7
affected

0.8
affected

0.9
affected

0.10
affected

0.11
affected

0.12
affected

0.13
affected

0.14
affected

Timeline

2026-05-25:Advisory disclosed
2026-05-25:VulDB entry created
2026-05-25:VulDB entry last update

Credits

pwn3rd (VulDB User) reporter

References

vuldb.com/vuln/365485 (VDB-365485 | GNU LibreDWG DWG File decode.c dwg_next_entity null pointer dereference) vdb-entry technical-description

vuldb.com/vuln/365485/cti (VDB-365485 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/814260 (Submit #814260 | LibreDWG Project LibreDWG <= 0.14, main branch up to commit 6d6a339 (2026-04-10) NULL Pointer Dereference (CWE-476)) third-party-advisory

github.com/LibreDWG/libredwg/issues/1245 issue-tracking

github.com/...eap_oob_write_read_2004_compressed_section.dwg exploit

github.com/...ommit/8f03865f37f5d4ffd616fef802acc980be54d300 patch

www.gnu.org/ product

cve.org (CVE-2026-9503)

nvd.nist.gov (CVE-2026-9503)

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