CVE-2026-16463 DXF File Parsing Heap-Based Overflow in Autodesk AutoCAD

High 7.8 Published 29 Jul 2026 Updated 2 Sep 2026

Attackers can execute arbitrary code, read sensitive data, or cause crashes by tricking users into opening malicious DXF files in AutoCAD.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-16463?

CVE-2026-16463 is a high-severity memory corruption vulnerability in Autodesk Advance Steel, published on 29 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A maliciously crafted DXF file, when parsed through Autodesk AutoCAD, can force a Heap-Based Overflow vulnerability. A malicious actor can leverage this vulnerability to cause a crash, read sensitive data, or execute arbitrary code in the context of the current process.

Weakness: CWE-122

Which versions are affected by CVE-2026-16463?

It affects 11 products.

Products include Autodesk Advance Steel, Autodesk Autocad, Autodesk Autocad Architecture, Autodesk Autocad Electrical, Autodesk Autocad Lt, Autodesk Autocad Map 3d and 5 more.

How do I fix CVE-2026-16463?

No fix has been published for CVE-2026-16463 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-16463 being exploited?

There is no known exploitation of CVE-2026-16463 in the wild and no public exploit code.

All Autodesk Advance Steel vulnerabilities

Sources

Also known as GHSA-6j5h-wf67-fv42.