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Description

A vulnerability was identified in GNU LibreDWG up to 0.14. This affects the function decompress_R2004_section of the file src/decode.c of the component Dwgread Utility. The manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. The identifier of the patch is e501cb9926c1e9a07a0d1cc997f3e69e9be801c9. To fix this issue, it is recommended to deploy a patch.

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:O/RC:C
MEDIUM: 5.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
4.3AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C

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

References

vuldb.com/vuln/365484 (VDB-365484 | GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section heap-based overflow) vdb-entry technical-description

vuldb.com/vuln/365484/cti (VDB-365484 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/814259 (Submit #814259 | 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/1243 issue-tracking

github.com/...339_heap_overflow_decompress_R2004_section.dwg exploit

github.com/...ommit/e501cb9926c1e9a07a0d1cc997f3e69e9be801c9 patch

www.gnu.org/ product

cve.org (CVE-2026-9502)

nvd.nist.gov (CVE-2026-9502)

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