CVE-2026-20890 in PROSet
Summary
by MITRE • 08/12/2026
Improper privilege management for some Intel(R) PROSet/Wireless WiFi Software for Windows within Ring 2: Privileged Process may allow an escalation of privilege. Unprivileged software adversary with an unauthenticated user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (low), integrity (low) and availability (high) impacts.
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Analysis
by VulDB Data Team • 08/12/2026
This vulnerability represents a critical privilege escalation flaw within Intel PROSet/Wireless WiFi Software for Windows, specifically affecting components operating within Ring 2 privileged execution context. The weakness stems from improper privilege management where unprivileged software adversaries can exploit the system through local access vectors without requiring authentication or user interaction. The attack complexity is classified as high, indicating that sophisticated knowledge and specialized internal information are necessary to successfully exploit this vulnerability. This aligns with CWE-276 which categorizes improper privilege management as a fundamental security flaw involving inadequate access control mechanisms. The vulnerability's potential impact spans all three core security principles with low confidentiality and integrity implications but significant availability concerns that could result in system-wide disruption.
The technical exploitation occurs through the privileged process within Ring 2, leveraging the software's insufficient privilege boundaries to elevate access levels from unprivileged to elevated status. This represents a classic privilege escalation attack pattern that maps to ATT&CK technique T1068 which focuses on locally executing processes with elevated privileges. The vulnerability's local access requirement means it can be exploited by adversaries who have physical or network access to the target system, making it particularly concerning for environments where such access might be gained through social engineering or physical compromise. The attack vector does not require user interaction, which significantly increases its exploitability and potential impact across various deployment scenarios.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass broader system compromise possibilities. Low confidentiality and integrity impacts suggest that while sensitive data may not be directly exposed or modified, the elevated privileges gained could enable adversaries to manipulate system configurations or access restricted resources that indirectly affect overall system security posture. The high availability impact indicates that successful exploitation could result in denial of service conditions or complete system compromise, potentially rendering the affected device unusable or vulnerable to further attacks. This vulnerability particularly affects systems where Intel PROSet/Wireless WiFi Software is installed and running with elevated privileges, creating a persistent attack surface for threat actors who can leverage this weakness.
Mitigation strategies should focus on immediate software updates from Intel addressing the privilege management flaw, along with comprehensive system hardening measures. Network segmentation and access controls should be implemented to limit local access points where possible, while monitoring solutions should detect suspicious privilege escalation activities. The vulnerability's classification as a Ring 2 privilege issue emphasizes the need for careful system configuration and regular security assessments of all privileged processes. Organizations should also consider implementing least privilege principles and regularly auditing software installations to ensure that only necessary components maintain elevated privileges. Additionally, security teams should monitor for exploitation attempts through behavioral analytics and endpoint detection systems that can identify anomalous privilege escalation patterns consistent with this vulnerability type.