CVE-2026-20776: Intel PROSet/Wireless WiFi Software improper conditions check denial of service

CVE-2026-20776 · Severity: high · CVSS 8.6 · Published 2026-08-11

Technologies: Intel Wi-Fi 7 Be211, Intel Wi-Fi 7 Be200, Intel Wireless Wifi, Intel Killer Wi-Fi 7 Be1775i\/S, Intel Wireless-Ac 9462, Intel Killer Wi-Fi 7 Be1750i\/S, Intel Wi-Fi 7 Be201, Intel Wi-Fi 7 Be213, Intel Killer Wi-Fi 6e Ax1675i\/S, Intel Proset\, Intel PROSet/Wireless WiFi Software, Intel Wi-Fi 6 Ax200, Intel Killer Wi-Fi 6e Ax1675x\/W, Intel Wireless-Ac 9560, Intel Wi-Fi 6e Ax211, Intel Killer Wi-Fi 6 Ax1650i\/S, Intel Wireless-Ac 9461, Intel Wi-Fi 6 Ax210, Intel Wi-Fi 6 Ax201, Intel Killer Wi-Fi 7 Be1750x\/W. Vendors: Intel.

Executive brief

Intel PROSet/Wireless WiFi Software is a driver and management suite for wireless network adapters on Windows systems. An improper conditions check in the Ring 2 device driver allows a network-adjacent attacker to crash or freeze the system without authentication, disrupting business operations and availability.

Technical details

CVE-2026-20776 is an improper conditions check vulnerability in Intel PROSet/Wireless WiFi Software Ring 2 device drivers that enables denial of service. The vulnerability resides in the wireless driver kernel component and can be exploited by a network-adjacent attacker without requiring authentication or user interaction. An attacker can trigger the vulnerability through crafted wireless frames or network packets to crash the device driver or cause system unresponsiveness, impacting system availability. Intel has released firmware/driver updates to address this issue; affected systems should apply the latest patches from Intel's advisory INTEL-SA-01422.

Affected products

Intel PROSet/Wireless WiFi Software <UNKNOWN>

Timeline

2026-08-11: disclosed

References

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