Vulnerability · Published May 25, 2026 · Assigned by VulDB
CVE-2026-9501GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section assertion
Low 3.3
In plain English
A low-severity security flaw in LibreDWG from GNU. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 4% of all known vulnerabilities).
Official description
A vulnerability was determined in GNU LibreDWG up to 0.14. The impacted element is the function decompress_R2004_section of the file src/decode.c of the component Dwgread Utility. Executing a manipulation can lead to reachable assertion. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called e501cb9926c1e9a07a0d1cc997f3e69e9be801c9. A patch should be applied to remediate this issue.
Affected products (as reported)
Weakness: CWE-617 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
References
- VDB-365483 | GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section assertion vdb-entry, technical-description
- VDB-365483 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #814250 | LibreDWG Project LibreDWG <= 0.14, main branch up to commit 6d6a339 (released 2026-04-10) Reachable Assertion (CWE-617) third-party-advisory
- https://github.com/LibreDWG/libredwg/issues/1242 issue-tracking
- https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_assert_fail_decompress_R2004_section.dwg exploit
- https://github.com/LibreDWG/libredwg/commit/e501cb9926c1e9a07a0d1cc997f3e69e9be801c9 patch
- https://www.gnu.org/ product