CVE-2021-27040 Memory corruption in Autodesk Advanced Steel, Civil 3D, AutoCAD, AutoCAD LT, AutoCAD Architecture, AutoCAD Electrical, AutoCAD Map 3D, AutoCAD Mechanical, AutoCAD MEP, AutoCAD Plant 3D
Attackers can execute arbitrary code by tricking users into opening a maliciously crafted DWG file in Autodesk CAD applications.
- 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-2021-27040?
CVE-2021-27040 is a low-severity memory corruption vulnerability in Autodesk Advance Steel, published on 25 Jun 2021. 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 DWG file can be forced to read beyond allocated boundaries when parsing the DWG file. This vulnerability can be exploited to execute arbitrary code.
Weakness: CWE-125
Which versions are affected by CVE-2021-27040?
It affects 13 products.
Products include Autodesk Advance Steel, Autodesk Autocad, Autodesk Autocad Architecture, Autodesk Autocad Electrical, Autodesk Autocad Lt, Autodesk Autocad Map 3d and 7 more.
How do I fix CVE-2021-27040?
No fix has been published for CVE-2021-27040 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-2021-27040 being exploited?
There is no known exploitation of CVE-2021-27040 in the wild and no public exploit code.
Other vulnerabilities in Autodesk Advance Steel
- CVE-2026-7406 BMP File Parsing Untrusted Pointer Dereference in certain Autodesk products
- CVE-2026-16463 DXF File Parsing Heap-Based Overflow in Autodesk AutoCAD
- CVE-2025-8893 PDF File Parsing Out-of-Bounds Write Vulnerability
- CVE-2025-8894 PDF File Parsing Heap-Based Buffer Overflow Vulnerability
- CVE-2025-5046 DGN File Parsing Out-of-Bounds Read Vulnerability
Sources
Also known as GHSA-qxw7-h89m-x9wf.