High severity · published Dec 23, 2021
CVE-2021-40161
A Memory Corruption vulnerability may lead to code execution through maliciously crafted DLL files through PDFTron earlier than 9.0.7 version
7.8
CVSS
1.5%
EPSS
No
On KEV
Description
A Memory Corruption vulnerability may lead to code execution through maliciously crafted DLL files through PDFTron earlier than 9.0.7 version.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Advance Steel · Autodesk
before 2019.1.4; 2020 before 2020.1.5; 2021 before 2021.1.2; 2022 before 2022.1.2 · source: NVD
AU
Autocad · Autodesk
before 2019.1.4; 2020 before 2020.1.5; 2021 before 2021.1.2; 2022 before 2022.1.2; after 2022 before 2022.2; 2020; +2 more · source: NVD
AA
Autocad Architecture · Autodesk
before 2019.1.4; 2020 before 2020.1.5; 2021 before 2021.1.2; 2022 before 2022.1.2 · source: NVD
AE
Autocad Electrical · Autodesk
before 2019.1.4; 2020 before 2020.1.5; 2021 before 2021.1.2; 2022 before 2022.1.2 · source: NVD
AL
Autocad LT · Autodesk
before 2019.1.4; 2020 before 2020.1.5; 2021 before 2021.1.2; 2022 before 2022.1.2; 2022 before 2022.2; 2020; +1 more · source: NVD
AM
Autocad Map 3d · Autodesk
before 2019.1.4; 2020 before 2020.1.5; 2021 before 2021.1.2; 2022 before 2022.1.2 · source: NVD
AM
Autocad Mechanical · Autodesk
before 2019.1.4; 2020 before 2020.1.5; 2021 before 2021.1.2; 2022 before 2022.1.2 · source: NVD
AM
Autocad Mep · Autodesk
before 2019.1.4; 2020 before 2020.1.5; 2021 before 2021.1.2; 2022 before 2022.1.2 · source: NVD
AP
Autocad Plant 3d · Autodesk
before 2019.1.4; 2020 before 2020.1.5; 2021 before 2021.1.2; 2022 before 2022.1.2 · source: NVD
C3
Civil 3d · Autodesk
before 2019.1.4; 2020 before 2020.1.5; 2021 before 2021.1.2; 2022 before 2022.1.2 · source: NVD
DR
Design Review · Autodesk
2018; 2018; 2018; 2018; 2018 · source: NVD
NA
Navisworks · Autodesk
before 2019.6; 2020 before 2020.4; 2021 before 2021.3; 2022 before 2022.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-40161
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-40161
Patch
https://www.autodesk.com/trust/security-advisories/adsk-sa-2021-0010
More from Advance Steel
7.8
CVE-2026-7406
BMP File Parsing Untrusted Pointer Dereference in certain Autodesk products
7.8
CVE-2026-16463
DXF File Parsing Heap-Based Overflow in Autodesk AutoCAD
7.8
CVE-2025-8894
A maliciously crafted PDF file, when parsed through certain Autodesk products, can force a Heap-Based Overflow vulnerability
7.8
CVE-2025-8893
A maliciously crafted PDF file, when parsed through certain Autodesk products, can force an Out-of-Bounds Write vulnerability
7.8
CVE-2025-5048
A maliciously crafted DGN file, when linked or imported into Autodesk AutoCAD, can force a Memory Corruption vulnerability