Overview
The cybersecurity community has recently discovered a critical vulnerability, termed as CVE-2025-54244, that affects Substance3D Viewer versions 0.25.1 and earlier. This Heap-based Buffer Overflow vulnerability can result in arbitrary code execution, potentially compromising the system or leading to data leakage. The severity of this issue underscores the need for immediate attention and remediation.
Vulnerability Summary
CVE ID: CVE-2025-54244
Severity: High; CVSS Score 7.8
Attack Vector: Local
Privileges Required: None
User Interaction: Required
Impact: Arbitrary code execution, potential system compromise, or data leakage
Affected Products
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Product | Affected Versions
Substance3D Viewer | 0.25.1 and earlier
How the Exploit Works
This exploit takes advantage of a Heap-based Buffer Overflow vulnerability in Substance3D Viewer. An attacker would craft a malicious file designed to overflow the buffer within the software. When the victim opens this file, the overflow allows the attacker to execute arbitrary code within the context of the user’s current session. This could potentially lead to a complete system compromise or data leakage.
Conceptual Example Code
Here is a conceptual representation of how the vulnerability might be exploited:
#include <stdlib.h>
#include <string.h>
int main(int argc, char *argv[]) {
char buffer[256];
if (argc > 1) {
strcpy(buffer, argv[1]); // buffer overflow happens here
}
return 0;
}In this example, the `strcpy` function is used to copy an attacker-controlled input into a fixed-size buffer without checking the length of the input, resulting in a buffer overflow.
Mitigation Guidance
Users of Substance3D Viewer version 0.25.1 and earlier are advised to apply the vendor patch as soon as it is available. In the meantime, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help mitigate the risk.
