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Description

A vulnerability was found in GNU LibreDWG up to 0.14. The affected element is the function read_2004_compressed_section of the file src/decode.c of the component Dwgread Utility. Performing a manipulation results in heap-based buffer overflow. The attack is only possible with local access. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

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:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 5.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 5.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
4.3AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Heap-based Buffer Overflow

Memory Corruption

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

VulDB CNA Team coordinator

References

github.com/LibreDWG/libredwg/issues/1241 exploit

vuldb.com/vuln/365482 (VDB-365482 | GNU LibreDWG Dwgread Utility decode.c read_2004_compressed_section heap-based overflow) vdb-entry technical-description

vuldb.com/vuln/365482/cti (VDB-365482 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/814248 (Submit #814248 | LibreDWG Project LibreDWG <= 0.14, main branch up to commit 6d6a339 (released 2026-04-10) Heap-based Buffer Overflow (CWE-122)) third-party-advisory

github.com/LibreDWG/libredwg/issues/1241 issue-tracking

github.com/...eap_oob_write_read_2004_compressed_section.dwg exploit

www.gnu.org/ product

cve.org (CVE-2026-9500)

nvd.nist.gov (CVE-2026-9500)

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