CVE-2021-40160: Autodesk Advance Steel

High severity, CVSS 7.8. EPSS: 1.5% chance of exploitation in the next 30 days.

PDFTron prior to 9.0.7 version may be forced to read beyond allocated boundaries when parsing a maliciously crafted PDF file. This vulnerability can be exploited to execute arbitrary code.

Affected products

• Autodesk Advance Steel: from 2022, before 2022.1.1 (fixed in 2022.1.1)
• Autodesk Autocad: from 2022, before 2022.1.1 (fixed in 2022.1.1); from 2022, before 2022.2 (fixed in 2022.2)
• Autodesk Autocad Architecture: from 2022, before 2022.1.1 (fixed in 2022.1.1)
• Autodesk Autocad Electrical: from 2022, before 2022.1.1 (fixed in 2022.1.1)
• Autodesk Autocad Lt: from 2022, before 2022.1.1 (fixed in 2022.1.1); from 2022, before 2022.2 (fixed in 2022.2)
• Autodesk Autocad Map 3d: from 2022, before 2022.1.1 (fixed in 2022.1.1)
• Autodesk Autocad Mechanical: from 2022, before 2022.1.1 (fixed in 2022.1.1)
• Autodesk Autocad Mep: from 2022, before 2022.1.1 (fixed in 2022.1.1)
• Autodesk Autocad Plant 3d: from 2022, before 2022.1.1 (fixed in 2022.1.1)
• Autodesk Civil 3d: from 2022, before 2022.1.1 (fixed in 2022.1.1)
• Autodesk Design Review: version 2018 only
• Autodesk Navisworks: from 2019, before 2019.6 (fixed in 2019.6); from 2020, before 2020.4 (fixed in 2020.4); from 2021, before 2021.3 (fixed in 2021.3); from 2022, before 2022.1 (fixed in 2022.1)
• Autodesk Revit: from 2020, before 2020.2.5 (fixed in 2020.2.5); from 2021, before 2021.1.4 (fixed in 2021.1.4); from 2022, before 2022.1 (fixed in 2022.1)

Published 2021-12-23. Last modified 2026-06-17.