CVE-2026-20891: Escalation of Privilege in Intel(R) PROSet/Wireless WiFi Software for Windows
CVE-2026-20891 is a medium severity vulnerability in Intel(R) PROSet/Wireless WiFi Software for Windows. It involves improper authentication within Ring 2 device drivers that may allow an unprivileged, unauthenticated local attacker to escalate privileges. The attack requires local access but no user interaction or special internal knowledge. The vulnerability primarily impacts system confidentiality with potential high confidentiality impact and low integrity and availability impacts.
AI Analysis
Technical Summary
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.
CVE-2026-20891: Escalation of Privilege in Intel(R) PROSet/Wireless WiFi Software for Windows
Description
CVE-2026-20891 is a medium severity vulnerability in Intel(R) PROSet/Wireless WiFi Software for Windows. It involves improper authentication within Ring 2 device drivers that may allow an unprivileged, unauthenticated local attacker to escalate privileges. The attack requires local access but no user interaction or special internal knowledge. The vulnerability primarily impacts system confidentiality with potential high confidentiality impact and low integrity and availability impacts.
CVSS v4.0
Score 6.3medium
AI-Powered Analysis
Machine-generated threat intelligence
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.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- intel
- Date Reserved
- 2025-12-03T18:04:52.948Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7b546ebf8831d539106b34
Added to database: 08/11/2026, 16:57:18 UTC
Last enriched: 08/12/2026, 00:11:52 UTC
Last updated: 08/12/2026, 01:21:27 UTC
Views: 4
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