CVE-2026-20717 Denial of service in Intel(R) QAT software drivers for Windows

Medium 6.9 Published 12 May 2026 Updated 12 May 2026

An unprivileged local attacker can cause a denial of service in Intel QAT Windows drivers due to improper input validation.

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

What is CVE-2026-20717?

CVE-2026-20717 is a medium-severity denial of service vulnerability in Intel(R) QAT software drivers for Windows, published on 12 May 2026. 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) QAT software drivers for Windows before version 1.13 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. 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 (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

Weakness: CWE-20

Which versions are affected by CVE-2026-20717?

It affects 1 product.

Products include Intel Quickassist Technology.

How do I fix CVE-2026-20717?

No fix has been published for CVE-2026-20717 yet. Limit exposure of the affected software until one is available.

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-2026-20717 being exploited?

There is no known exploitation of CVE-2026-20717 in the wild and no public exploit code.

Sources

Also known as GHSA-m62h-w7h5-g936.