CVE-2025-30404: Integer Overflow Vulnerability in ExecuTorch Resulting in Potential System Compromise

Overview

CVE-2025-30404 represents a crucial security flaw discovered in the ExecuTorch machine learning software. This integer overflow vulnerability, when exploited, can cause overlapping allocations, leading to potential execution of malicious code or triggering other harmful effects. With an impressive CVSS score of 9.8, it demands immediate attention and remediation. The entities affected by this vulnerability are those using versions of ExecuTorch prior to commit d158236b1dc84539c1b16843bc74054c9dcba006. This vulnerability’s significance is amplified by the potential for system compromise or data leakage if left unaddressed.

Vulnerability Summary

CVE ID: CVE-2025-30404
Severity: Critical (CVSS: 9.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

ExecuTorch | Prior to commit d158236b1dc84539c1b16843bc74054c9dcba006

How the Exploit Works

The exploit takes advantage of an integer overflow vulnerability in the loading of ExecuTorch models. An attacker can craft malicious input that triggers the overflow, resulting in overlapping allocations. This overlapping could lead to memory corruption, which can potentially allow the attacker to execute arbitrary code or cause the system to behave unexpectedly.

Conceptual Example Code

Below is a conceptual example of a malicious payload that could trigger this vulnerability. This is not an actual exploit code but a representation of how an attack might occur:

import executortch
# Load a maliciously crafted model
model = executortch.load('malicious_model.pth')
# The model is used in a way that triggers the integer overflow
result = model.predict(data)

Please note that this simplified example is meant to illustrate the type of activity that could occur. In an actual attack, the crafted model would contain specific payloads designed to exploit the vulnerability and initiate unauthorized actions.

Mitigation Guidance

Users are advised to apply the vendor patch to fix this vulnerability. If unable to immediately apply the patch, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. These systems can potentially detect and block attempts to exploit this vulnerability. However, they are not a permanent solution and cannot replace the need for patching the vulnerable software.