CVE-2021-44545 Denial of service in Intel(R) PROSet/Wireless WiFi and Killer(TM) WiFi products

Medium 6.5 Published 18 Aug 2022 Updated 5 May 2025

Unauthenticated attackers can cause denial of service in Intel and Killer WiFi products via adjacent access due to improper input validation.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2021-44545?

CVE-2021-44545 is a medium-severity denial of service vulnerability in Intel(R) PROSet/Wireless WiFi and Killer(TM) WiFi products, published on 18 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper input validation for some Intel(R) PROSet/Wireless WiFi and Killer(TM) WiFi products may allow an unauthenticated user to potentially enable denial of service via adjacent access.

Weakness: CWE-20

Which versions are affected by CVE-2021-44545?

It affects 9 products.

Products include Intel Killer Ac 1550 Firmware, Intel Killer Wi-Fi 6 Ax1650 Firmware, Intel Killer Wi-Fi 6e Ax1675 Firmware, Intel Killer Wi-Fi 6e Ax1690 Firmware, Intel Proset Wi-Fi 6e Ax210 Firmware, Intel Wi-Fi 6 Ax200 Firmware and 3 more.

How do I fix CVE-2021-44545?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-44545 being exploited?

There is no known exploitation of CVE-2021-44545 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2021-44545, GHSA-938j-25px-7rch.