CVE-2026-50228 in NitroSense
Summary
by MITRE • 09/23/2026
An unauthenticated local attacker can connect to the Electron DevTools endpoint exposed by Acer NitroSense software (versions up to and including 5.2.63) on localhost TCP port 9993. Because Chromium remote debugging is enabled in the production application, the attacker can execute JavaScript in the privileged application context and achieve arbitrary code execution.
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Analysis
by VulDB Data Team • 09/23/2026
The vulnerability identified involves a critical misconfiguration within Acer NitroSense software, specifically affecting versions up to and including 5.2.63. The core issue stems from the exposure of the Electron DevTools endpoint on localhost TCP port 9993 without requiring any form of authentication or access control checks. This configuration is particularly dangerous because it allows an unauthenticated local attacker to establish a direct connection to the application's internal debugging interface. In typical software development practices, such endpoints are intended for use by developers during testing and should be disabled in production builds to prevent unauthorized interaction with the application's internals. However, in this instance, Chromium remote debugging features remain enabled within the final release version of the software, creating a significant security gap that bypasses standard isolation mechanisms.
From a technical perspective, the flaw leverages the capabilities inherent in Electron applications, which are built on top of the Chromium browser engine and Node.js runtime. By connecting to the exposed DevTools endpoint, an attacker can inject and execute arbitrary JavaScript code within the privileged context of the application. This is not merely a client-side script execution but occurs with elevated privileges granted to the host process. Consequently, this capability allows for remote code execution on the victim's machine. The attacker gains full control over the application environment, which often includes access to system resources, file systems, and network configurations depending on how the specific Electron app is architected. This effectively neutralizes the sandboxing protections that are typically designed to limit the damage of compromised web content within an Electron application.
The operational impact of this vulnerability is severe due to its local nature and lack of authentication requirements. Any user account or malicious process running locally on the system can exploit this flaw without needing prior credentials or social engineering tactics such as phishing. Once exploited, the attacker achieves arbitrary code execution with the same privileges as the NitroSense application itself. Depending on how Acer has configured the service permissions, this could range from data exfiltration and privacy violations to complete system compromise if the application runs with administrative rights. The ability to execute JavaScript in a privileged context means that attackers can potentially install persistent malware, steal sensitive information stored by the software or accessed through it, and manipulate hardware monitoring features for malicious purposes.
This vulnerability aligns closely with CWE-94 Improper Control of Generation of Code (Code Injection), as it allows an attacker to inject executable code into a privileged process. Furthermore, from a tactical standpoint related to the MITRE ATT&CK framework, this exploit maps to techniques involving Command and Scripting Interpreter abuse, specifically allowing for remote execution via injected scripts. It also relates to CWE-295 Improper Certificate Validation or more broadly CWE-749 Exposure of Dangerous Method in Web Application if viewed through the lens of exposed APIs, but most accurately reflects a failure in access control leading to privilege escalation within the application layer. The root cause is fundamentally a design flaw where development tools were not disabled for production use, violating the principle of least privilege and secure default configurations recommended by industry standards such as OWASP Secure Coding Practices.
Mitigation strategies must focus on immediate remediation and long-term architectural improvements. For users currently running vulnerable versions, the most effective mitigation is to update Acer NitroSense to a version where this vulnerability has been patched or to uninstall the software if it is not essential for system operation. Developers should ensure that all debugging interfaces, including Chromium remote debugging ports, are strictly disabled in production builds by setting appropriate flags such as disable-devtools and disabling remote inspection capabilities at compile time. Additionally implementing strict access controls on local network sockets can prevent even local unauthorized connections from reaching sensitive endpoints. Security testing procedures must include verification of exposed services to ensure that no unintended interfaces remain open after deployment, thereby preventing similar misconfigurations in future releases.