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Vulnerability record · CVE-2021-40166 · published 7 October 2022

CVE-2021-40166: Autodesk autocad use after free vulnerability

Autodesk · Autocad

A maliciously crafted PNG file in Autodesk Image Processing component may be used to attempt to free an object that has already been freed while parsing them. This vulnerability may be exploited by attackers to execute arbitrary code.

7.8 CVSS 3.1 High EPSS 0.93% · top 41.0% CWE-416 · Use after free
7.8CVSS 3.1 base score
0.93%EPSS exploitation probability, 30 days
NoNot in CISA KEV
19Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A maliciously crafted PNG file in Autodesk Image Processing component may be used to attempt to free an object that has already been freed while parsing them. This vulnerability may be exploited by attackers to execute arbitrary code.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

19 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.autodesk.com/trust/security-advisories/adsk-sa-2021-0011 Vendor Advisory
https://www.autodesk.com/trust/security-advisories/adsk-sa-2021-0011 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-40166), CISA KEV, FIRST EPSS (scores of 2026-09-30). This page is refreshed as NVD updates the record.