CVE-2026-20886 Memory corruption in Intel(R) PROSet/Wireless WiFi Software for Windows

Medium 6.9 Published 11 Aug 2026 Updated 12 Aug 2026

A network-adjacent attacker can cause a denial of service in Intel PROSet/Wireless WiFi drivers via an out-of-bounds write vulnerability.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-20886?

CVE-2026-20886 is a medium-severity memory corruption vulnerability in Intel Proset\/Wireless Wifi, published on 11 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Out-of-bounds write for some Intel(R) PROSet/Wireless WiFi Software for Windows within Ring 2: Device Drivers may allow a denial of service. Network adversary with an unauthenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via adjacent access when attack requirements are not present without special internal knowledge and requires passive user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (low) impacts.

Weakness: CWE-787

Which versions are affected by CVE-2026-20886?

It affects 1 product.

Products include Intel Proset\/Wireless Wifi.

How do I fix CVE-2026-20886?

No fix has been published for CVE-2026-20886 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-20886 being exploited?

There is no known exploitation of CVE-2026-20886 in the wild and no public exploit code.

All Intel Proset\/Wireless Wifi vulnerabilities

Sources

Also known as GHSA-3xgp-xx47-qg49.