Autodesk AutoCAD PRT File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

July 29th, 2025
ZDI-25-701 ZDI-CAN-27221

CVE ID

CVE-2025-6631

CVSS Score

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

Affected Vendors

Autodesk

Affected Products

AutoCAD

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Autodesk AutoCAD. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of PRT files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated object. An attacker can leverage this vulnerability to execute code in the context of the current process.

Additional Details

Autodesk has issued an update to correct this vulnerability. More details can be found at:
https://www.autodesk.com/trust/security-advisories/adsk-sa-2025-0015

Disclosure Timeline

  • 2025-05-29 - Vulnerability reported to vendor
  • 2025-07-29 - Coordinated public release of advisory
  • 2025-07-29 - Advisory Updated

Credit

Anonymous

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