CVE-2026-111167: GNU LibreDWG out-of-bounds read in AcDs decoder

CVE-2026-111167 · Severity: medium · CVSS 6.1 · Published 2026-10-15

GNU LibreDWG is a library for reading and writing AutoCAD DWG files, used by CAD applications and design tools. A flaw in the AcDs decoder allows attackers to crash DWG-processing software by supplying a specially crafted DWG file, potentially causing denial of service to users working with CAD drawings.

Technologies: Gnu LibreDWG. Vendors: Gnu.

Quick answers

Is CVE-2026-111167 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-111167 being exploited in the wild.
How severe is CVE-2026-111167?
Medium severity, with a CVSS score of 6.1, published 15 October 2026.
Which products and versions are affected?
Gnu LibreDWG through 0.14.8612.
Is there a fix for CVE-2026-111167?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-111167 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-111167?
Check whether you run Gnu LibreDWG at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is an out-of-bounds read in the acds_private() function of the AcDs decoder, triggered by an unchecked schema property type index. An attacker can craft an R2004 or R2010+ DWG file with a large 'schdat' property type value to read beyond a static table, crashing dwgread, dwg2dxf, or any application linking LibreDWG.

Affected products

  • GNU LibreDWG through 0.14.8612

Timeline

  • 2026-10-15: disclosed

References

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