Is CVE-2026-9605 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-9605 being exploited in the wild.

How severe is CVE-2026-9605?

High severity, with a CVSS score of 7.3, published 27 May 2026.

Which products and versions are affected?

Gnu LibreDWG up to 0.13.4.8160.

Is there a fix for CVE-2026-9605?

A patch was published on 2026-05-27: Patch commit 8f03865f37f5d4ffd616fef802acc980be54d300 identified Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-9605 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-9605?

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.

CVE-2026-9605: GNU libredwg heap buffer overflow in bit_read_RC

CVE-2026-9605 · Severity: high · CVSS 7.3 · Published 2026-05-27

A security vulnerability has been identified in GNU libredwg, a library used for reading and writing DWG files (the native format for CAD software like AutoCAD). An attacker could provide a specially crafted DWG file that, when processed by the library or its associated utilities, causes the application to crash or potentially allow unauthorized access to data. This could lead to service disruptions or the compromise of sensitive design files.

Technologies: Gnu LibreDWG. Vendors: Gnu.

Quick answers

Is CVE-2026-9605 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-9605 being exploited in the wild.
How severe is CVE-2026-9605?: High severity, with a CVSS score of 7.3, published 27 May 2026.
Which products and versions are affected?: Gnu LibreDWG up to 0.13.4.8160.
Is there a fix for CVE-2026-9605?: A patch was published on 2026-05-27: Patch commit 8f03865f37f5d4ffd616fef802acc980be54d300 identified Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-9605 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-9605?: 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

A heap-based buffer overflow exists in GNU libredwg versions up to 0.13.4.8160 within the bit_read_RC function in bits.c. The vulnerability is triggered during the decompression of R2004 compressed sections when processing malformed DWG files via the dwgbmp utility. An attacker can exploit this remotely by providing a crafted DWG file, leading to an out-of-bounds read/write. This issue is a result of an incomplete fix for previous decompression overflows where address and size wrapping were not properly validated against the decompression buffer size. A patch has been released in commit 8f03865f37f5d4ffd616fef802acc980be54d300 to add the necessary bounds checks.

Affected products

GNU libredwg up to 0.13.4.8160

Timeline

2026-04-22: disclosed: Issue reported on GitHub by HackC0der
2026-05-27: advisory: NVD publication date
2026-05-27: patched: Patch commit 8f03865f37f5d4ffd616fef802acc980be54d300 identified

References

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