Overview
The cybersecurity landscape is constantly evolving and one such manifestation of this evolution is the discovery of an Out-of-Bounds Read vulnerability in certain Autodesk products, as identified by the Common Vulnerabilities and Exposures (CVE) identifier CVE-2025-6635. This vulnerability stems from the mishandling of maliciously crafted PRT files which, when imported or linked into vulnerable Autodesk products, can lead to unintended consequences. This vulnerability has the potential to affect a wide range of users, spanning from individual users to large enterprises, given the widespread usage of Autodesk products. This makes it a significant concern that should be addressed promptly.
Vulnerability Summary
CVE ID: CVE-2025-6635
Severity: High (7.8)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Autodesk AutoCAD | All versions prior to 2025 Patch 1
Autodesk Inventor | All versions prior to 2025 Update 2
How the Exploit Works
The out-of-bounds read vulnerability is triggered when an Autodesk product attempts to process a maliciously crafted PRT file. The exploit takes advantage of the software’s lack of proper validation of user-supplied input. This allows a malicious actor to force the software to read beyond the intended boundary of the targeted data structure, potentially leading to a crash, data leakage, or arbitrary code execution.
Conceptual Example Code
This conceptual example illustrates how a malicious actor might craft a PRT file to exploit this vulnerability:
#include <stdio.h>
int main() {
// Create a buffer with more data than expected
char buffer[256] = {0};
FILE *file = fopen("malicious.prt", "rb");
// If the file exists, read the data
if (file != NULL) {
fread(buffer, 1, 512, file);
fclose(file);
}
// The buffer is now filled with more data than it can handle, causing an out-of-bounds read
printf("%s\n", buffer);
return 0;
}This example is overly simplified to demonstrate the concept, and the actual exploit would likely involve more complex manipulations and obfuscations.
Mitigation
The recommended mitigation for this vulnerability is to apply the vendor-issued patch as soon as it becomes available. Until the patch can be applied, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation by filtering out malicious PRT files. Regular monitoring of system logs and network traffic can also aid in identifying any attempts to exploit this vulnerability.
