CVE-2026-50610 in NitroSense
Summary
by MITRE • 09/17/2026
A vulnerability has been identified in the Acer System Monitoring component included with NitroSense and PredatorSense due to insufficient access controls in a privileged service. An authenticated local user may be able to access the service and perform unauthorized registry modifications, potentially resulting in local privilege escalation.
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Analysis
by VulDB Data Team • 09/17/2026
The vulnerability resides within the system monitoring components of Acer’s NitroSense and PredatorSense software suites, specifically affecting a privileged background service responsible for hardware telemetry and performance management. This component is designed to operate with elevated privileges to monitor critical system metrics such as CPU temperature, fan speeds, and power consumption. However, an analysis reveals that this service lacks sufficient access control mechanisms on its inter-process communication endpoints or associated configuration files. Specifically, the service fails to enforce strict integrity checks or permission restrictions when handling requests from local processes, allowing any authenticated user with standard account privileges to interact with a component intended for administrative use only. This architectural flaw represents a classic case of insufficient privilege separation, where a low-privilege entity can influence high-privilege operations due to overly permissive security descriptors on system resources.
From a technical perspective, the core issue is an improper access control configuration that permits unauthorized registry modifications by non-administrative users. The service likely exposes interfaces or file paths with write permissions granted to the Users group rather than restricting them to Administrators only. This oversight allows an attacker to manipulate critical Windows Registry keys associated with system startup configurations, driver settings, or security policies. By altering these entries, a local user can potentially modify how the operating system loads certain components or change execution parameters for other services. Such modifications are not merely cosmetic; they directly impact the integrity and availability of core system functions, creating pathways that bypass standard authentication checks required for administrative tasks.
The operational impact of this vulnerability is significant due to its potential for local privilege escalation. An authenticated attacker can leverage these unauthorized registry changes to establish persistence or escalate their privileges from a standard user account to SYSTEM level access. Once elevated, the attacker gains unrestricted control over the operating system, including the ability to install rootkits, modify security software configurations, exfiltrate sensitive data, and create new administrative accounts. This effectively compromises the confidentiality, integrity, and availability of the entire host machine. The risk is particularly acute in enterprise environments or shared workstations where multiple users may have access to a single device, as any user can potentially compromise the system without needing physical possession of administrator credentials.
This vulnerability aligns with CWE-269, which classifies Improper Privilege Management, specifically highlighting cases where an actor possesses privileges that are not appropriate for their role or intended function. Furthermore, in the context of the MITRE ATT&CK framework, this flaw facilitates techniques related to Persistence and Defense Evasion through Registry Run Keys or Startup Folder modifications (T1547), as well as Privilege Escalation via system binary proxy execution or service manipulation if the registry changes allow for such actions. The lack of input validation and access control on privileged services is a common vector in Windows-based systems, underscoring the importance of principle of least privilege in software design.
To mitigate this risk, Acer should immediately release an updated version of NitroSense and PredatorSense that enforces strict Access Control Lists (ACLs) on all exposed interfaces, registry keys, and file paths associated with the monitoring service. The service must be configured to run under a dedicated low-privilege account where possible, or if elevated privileges are strictly necessary for hardware access, it must implement robust authentication checks before processing any configuration changes. Additionally, developers should adopt secure coding practices that validate all inputs from untrusted sources and ensure that sensitive operations require explicit administrative consent rather than relying on implicit trust based on local user status. System administrators can also apply mitigations by manually auditing the permissions of relevant registry keys using tools like Sysinternals AccessChk to verify that write access is restricted to Administrators only, thereby reducing the attack surface until a permanent patch is deployed.