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

Source: https://junglewise.ai/threats/cve-2026-111167-gnu-libredwg-through-0-14-8612-contains-a-global-out-of-bounds  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-15. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/libredwg). Vendors: [Gnu](https://junglewise.ai/threats/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

- [https://github.com/](https://github.com/)
- [https://github.com/LibreDWG/libredwg](https://github.com/LibreDWG/libredwg)

## Related threats

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- [GNU libredwg heap buffer overflow in bit_read_RC](https://junglewise.ai/threats/cve-2026-9605-gnu-libredwg-heap-buffer-overflow-in-bit-read-rc)