CVE-2026-20878 Null dereference in Intel(R) PROSet/Wireless WiFi Software for Windows

High 7.1 Published 11 Aug 2026 Updated 12 Aug 2026

A null pointer dereference in Intel WiFi drivers allows network adversaries to cause a denial of service via adjacent access.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-20878?

CVE-2026-20878 is a high-severity vulnerability in Intel Proset\/Wireless Wifi, published on 11 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Null pointer dereference 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 no 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-476

Which versions are affected by CVE-2026-20878?

It affects 1 product.

Products include Intel Proset\/Wireless Wifi.

How do I fix CVE-2026-20878?

No fix has been published for CVE-2026-20878 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-20878 being exploited?

There is no known exploitation of CVE-2026-20878 in the wild and no public exploit code.

All Intel Proset\/Wireless Wifi vulnerabilities

Sources

Also known as GHSA-v73p-4m58-vq4v.