CVE-2025-5047: Uninitialized Variable Vulnerability in Autodesk AutoCAD

Overview

The Common Vulnerabilities and Exposures (CVE) system has identified a severe vulnerability, CVE-2025-5047, affecting Autodesk AutoCAD software. When a maliciously crafted DGN file is parsed through Autodesk AutoCAD, an Uninitialized Variable vulnerability can be triggered. This vulnerability is particularly worrisome as it enables a malicious actor to cause system crashes, read sensitive data, or even execute arbitrary code, potentially leading to system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-5047
Severity: High, with a CVSS score of 7.8
Attack Vector: DGN File
Privileges Required: None
User Interaction: Required
Impact: System crashes, sensitive data access, and arbitrary code execution leading to potential system compromise or data leakage.

Affected Products

Product | Affected Versions

Autodesk AutoCAD | All versions prior to vendor patch

How the Exploit Works

The exploit takes advantage of an uninitialized variable within Autodesk AutoCAD when parsing a DGN file. A malicious actor can craft a DGN file in such a way that it triggers this vulnerability when opened in AutoCAD. Once triggered, the vulnerability allows the actor to cause crashes, access sensitive data, or execute arbitrary code in the context of the current process.

Conceptual Example Code

Here is a conceptual example illustrating how a maliciously crafted DGN file might look like. However, note that the actual exploit would likely involve complex binary crafting techniques.

$ echo "malicious_payload" > exploit.dgn
$ autocad exploit.dgn

In this simplified example, the `malicious_payload` represents data crafted to exploit the uninitialized variable vulnerability. When this DGN file is opened with AutoCAD (represented by `autocad exploit.dgn`), the exploit is triggered.