Overview
Today, we will be exploring a significant vulnerability, CVE-2025-54949, that affects the ExecuTorch models prior to the commit ede82493dae6d2d43f8c424e7be4721abe5242be. This vulnerability is particularly alarming due to the potential it has for code execution or triggering other undesirable effects. It is highly prevalent in older versions of the software, making a substantial number of systems susceptible to potential compromise and data leakage.
Given the severity of the CVSS score of 9.8, this vulnerability is a critical concern that requires immediate attention. The potential for system compromise and data leakage highlights the seriousness of this issue, making it crucial for all users to update their systems or implement mitigation measures.
Vulnerability Summary
CVE ID: CVE-2025-54949
Severity: Critical (9.8 CVSS)
Attack Vector: Local
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
ExecuTorch | Prior to commit ede82493dae6d2d43f8c424e7be4721abe5242be
How the Exploit Works
This exploit takes advantage of a heap buffer overflow vulnerability in the loading of ExecuTorch models. By sending an improperly formatted model file that exceeds the buffer’s capacity, an attacker can cause the application to overflow its buffer, leading to the execution of malicious code or causing the system to behave unpredictably.
Conceptual Example Code
A conceptual example of this vulnerability might be an attacker sending a malicious model file to the target system. This file would be crafted in such a way that it triggers a buffer overflow when loaded. A sample command might look like this:
$ executorch load --model malicious_model.etmIn this example, “malicious_model.etm” is a model file crafted to cause a buffer overflow in the ExecuTorch software.
Remember, this is a conceptual example and not functional code. The actual exploit would require a deep understanding of the ExecuTorch model format and the specific details of the buffer overflow vulnerability.