CVE-2025-1276: Out-of-Bounds Write Vulnerability in Certain Autodesk Applications

Overview

In this blog post, we will be discussing a critical vulnerability, identified as CVE-2025-1276, that could potentially expose Autodesk applications to severe security risks. This vulnerability arises when certain Autodesk applications parse a maliciously crafted DWG file, resulting in an Out-of-Bounds Write vulnerability. Any organization or individual that uses the affected Autodesk applications to handle DWG files is at risk. The vulnerability matters because it could lead to system crashes, data corruption, or even arbitrary code execution, which could, in turn, lead to system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-1276
Severity: High (7.8 CVSS Score)
Attack Vector: Local
Privileges Required: None
User Interaction: Required
Impact: System crash, data corruption, arbitrary code execution, potential system compromise, and data leakage.

Affected Products

Product | Affected Versions

Autodesk AutoCAD | All versions prior to patch
Autodesk Revit | All versions prior to patch

How the Exploit Works

The exploit takes advantage of an out-of-bounds write vulnerability that occurs when certain Autodesk applications parse a maliciously crafted DWG file. An attacker can craft a DWG file in such a way that when it is parsed by the Autodesk application, it forces the application to write data beyond the boundaries of allocated memory. This could lead to memory corruption or the execution of arbitrary code.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited. The attacker sends a malicious DWG file to the victim, who opens it with the Autodesk application. Note that this is conceptual and does not represent actual exploit code.

# Attacker crafts malicious DWG file
echo "malicious_code" > malicious.dwg
# Victim opens the DWG file with the Autodesk application
autodesk_app malicious.dwg

Upon execution, the application parses the malicious DWG file, triggering the out-of-bounds write vulnerability and leading to the potential execution of arbitrary code.

Mitigation Guidance

Affected users should apply the vendor-provided patch as soon as possible. In the interim, users could use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary measure. However, these are not full-proof solutions and only serve to reduce the risk of exploitation. The only comprehensive mitigation is to install the patch provided by Autodesk.