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CVE-2026-20891: Escalation of Privilege in Intel(R) PROSet/Wireless WiFi Software for Windows

0
Medium
VulnerabilityCVE-2026-20891cvecve-2026-20891
Published: 08/11/2026 (08/11/2026, 16:27:03 UTC)
Source: CVE Database V5
Product: Intel(R) PROSet/Wireless WiFi Software for Windows

Description

Improper authentication for some Intel(R) PROSet/Wireless WiFi Software for Windows within Ring 2: Device Drivers may allow an escalation of privilege. Unprivileged software adversary with an unauthenticated user combined with a low complexity attack may enable local code execution. 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 (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (low) and availability (low) impacts.

CVSS v4.0

Score 6.3medium

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
High
Subsq. Integrity
Low
Subsq. Availability
Low
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:L

Affected software

Intel(R) PROSet/Wireless WiFi Software for Windows

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/12/2026, 00:11:52 UTC

Technical Analysis

This vulnerability arises from improper authentication in Intel(R) PROSet/Wireless WiFi Software for Windows device drivers operating in Ring 2. An unprivileged attacker with local access and no authentication can exploit this flaw to escalate privileges on the system. The attack complexity is low and does not require user interaction or special internal knowledge. The vulnerability affects confidentiality primarily, with potential subsequent impacts on system confidentiality (high), integrity (low), and availability (low). No known exploits are reported in the wild, and no patch or remediation level has been provided by the vendor as of the publication date.

Potential Impact

The vulnerability allows local privilege escalation by an unauthenticated, unprivileged attacker, potentially leading to high confidentiality compromise of the system. Integrity and availability impacts are assessed as low or none. Since the attack requires local access, remote exploitation is not indicated. No known active exploitation has been reported.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been published by the vendor at this time.

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Technical Details

Data Version
5.2
Assigner Short Name
intel
Date Reserved
2025-12-03T18:04:52.948Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6a7b546ebf8831d539106b34

Added to database: 08/11/2026, 16:57:18 UTC

Last enriched: 08/12/2026, 00:11:52 UTC

Last updated: 09/24/2026, 01:47:41 UTC

Views: 30

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