CVE-2026-9503 Details
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.
A null pointer dereference vulnerability has been identified in GNU LibreDWG versions through 0.14. The issue arises in the DWG File Handler component, specifically within the 'dwg_next_entity' function of 'src/decode.c'. This vulnerability allows for a local attack that can lead to a segmentation fault by accessing an invalid memory address. The flaw has been publicly disclosed and exploited.
Users are advised to upgrade to the patched version of GNU LibreDWG, which is available in the official repository.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 25, 2026CISA-ADP
Assessed May 26, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_oob_write_read_2004_compressed_section.dwg | [email protected] | Not Applicable |
| https://github.com/LibreDWG/libredwg/commit/8f03865f37f5d4ffd616fef802acc980be54d300 | [email protected] | Source CodeVendor |
| https://github.com/LibreDWG/libredwg/issues/1245 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://vuldb.com/submit/814260 | [email protected] | Permission Required |
| https://vuldb.com/vuln/365485 | [email protected] | AdvisoryPermission RequiredRemedy |
| https://vuldb.com/vuln/365485/cti | [email protected] | AdvisoryPermission Required |
| https://www.gnu.org/ | [email protected] | Vendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-404 | Improper Resource Shutdown or Release | [email protected] |
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| GNU LibreDWG | <= 0.14 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 25, 2026 | New CVE Received | [email protected] |