CVE-2026-20891

Severity: high (CVSS 7.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-11 · updated 2026-08-26
Weakness: CWE-287

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.

Affected products

Intel(R) PROSet/Wireless WiFi Software for Windows: before 24.10.0 — fixed in 24.10.0

How to fix

Upgrade to a fixed version: Intel(R) PROSet/Wireless WiFi Software for Windows 24.10.0. Check the vendor advisory for mitigations.

References

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01422.html

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