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CVE-2026-9503

GNU LibreDWG DWG File decode.c dwg_next_entity null pointer dereference

CVSS 4.8 MEDIUMEPSS 0.1%CWE-404CWE-476
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.
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
Affected products
GNU · LibreDWG
public PoCs found — 1
cve_referencegithub.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_oob_write_read_2004_compressed_section.dwgunverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References
https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_oob_write_read_2004_compressed_section.dwghttps://github.com/LibreDWG/libredwg/commit/8f03865f37f5d4ffd616fef802acc980be54d300https://github.com/LibreDWG/libredwg/issues/1245https://vuldb.com/submit/814260https://vuldb.com/vuln/365485https://vuldb.com/vuln/365485/ctihttps://www.gnu.org/