CVE-2026-50604 in Agent Service
Summary
by MITRE • 09/17/2026
A vulnerability has been identified in the Acer Agent Service component included with NitroSense and PredatorSense. The socket handshake process does not properly require authentication before granting access to the service. Under certain circumstances, an unauthorized connection may be established, potentially allowing access to functionality that should be restricted.
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Analysis
by VulDB Data Team • 09/17/2026
The vulnerability resides within the Acer Agent Service, a core component of both NitroSense and PredatorSense software suites designed for managing system performance on Acer hardware. These applications provide users with tools to monitor temperatures, control fan speeds, adjust power profiles, and manage RGB lighting configurations. The specific flaw lies in the socket handshake process used by the service to establish communication channels between client interfaces and the underlying daemon. This authentication mechanism is critically flawed because it fails to enforce mandatory identity verification before granting access to internal APIs or system controls. Consequently, any local user on the affected machine can initiate a connection to this service without providing valid credentials, effectively bypassing intended security boundaries that should restrict such interactions to authorized processes only.
From a technical perspective, this represents a classic case of improper authentication leading to unauthorized access. The lack of required verification during the socket handshake allows unprivileged applications or scripts to interact directly with the agent service as if they were legitimate administrative tools. This architectural weakness means that the software does not distinguish between requests originating from trusted system components and those coming from arbitrary local processes. In many implementations, such services run with elevated privileges to allow for hardware-level adjustments like fan speed control or voltage modulation. By exploiting this flaw, an attacker can leverage these high-privilege capabilities without needing administrative rights on the operating system itself, creating a privilege escalation vector through software abuse rather than kernel exploitation.
The operational impact of this vulnerability is significant due to the nature of the functions exposed by NitroSense and PredatorSense. An unauthorized actor could manipulate hardware settings in ways that compromise system stability or physical integrity. For instance, they could disable cooling fans under load conditions, leading to thermal throttling, performance degradation, or potentially permanent damage to CPU and GPU components through overheating. Additionally, access to these services may allow for the modification of power limits, which can destabilize the operating environment or cause unexpected shutdowns during critical tasks. While direct remote code execution is not implied by this specific handshake flaw, the ability to alter hardware states locally provides a foothold that could be combined with other local vulnerabilities to achieve more severe outcomes, such as data exfiltration via side-channel attacks facilitated by thermal manipulation or persistent system instability designed to disrupt business operations.
This vulnerability aligns closely with CWE-287 Improper Authentication and CWE-434 Unrestricted Upload of File with Dangerous Type if the service allows configuration file modifications, though primarily it is an authentication bypass issue. In terms of MITRE ATT&CK mapping, this behavior corresponds to T1059 Command and Scripting Interpreter or more specifically T1620 Reflective Code Loading if malicious code were injected via the API, but most directly relates to T1496 Resource Hijacking through fan control manipulation or T1078 Valid Accounts if the service was intended for specific user contexts. The lack of authentication also touches upon principles found in CWE-352 Cross-Site Request Forgery concepts adapted for local inter-process communication where trust is assumed but not verified.
Mitigation strategies should focus on immediate patching and configuration hardening until official updates are deployed by Acer. Users should ensure their NitroSense and PredatorSense applications are updated to the latest versions provided by the manufacturer, as these releases typically include fixes that enforce proper authentication protocols during socket handshakes. In environments where these utilities are not strictly necessary for operational requirements, disabling or uninstalling the services can reduce the attack surface entirely. System administrators should also monitor local process activity using endpoint detection and response tools to identify any unexpected connections to the Acer Agent Service ports, which may indicate exploitation attempts. Furthermore, applying principle of least privilege by restricting service permissions where possible adds an additional layer of defense against unauthorized access even if authentication flaws persist in older versions.