CVE-2026-20767 Privilege escalation in Intel(R) QAT software drivers for Windows

High 8.5 Published 12 May 2026 Updated 13 May 2026

An unprivileged local attacker can escalate privileges via improper input validation in Intel QAT Windows drivers, compromising system confidentiality, integrity, and availability.

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-2026-20767?

CVE-2026-20767 is a high-severity 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 an escalation of privilege. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable escalation of privilege. 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 (high), integrity (high) 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-2026-20767?

It affects 1 product.

Products include Intel Quickassist Technology.

How do I fix CVE-2026-20767?

No fix has been published for CVE-2026-20767 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-20767 being exploited?

There is no known exploitation of CVE-2026-20767 in the wild and no public exploit code.

Sources

Also known as GHSA-m8mm-9cp6-x7h3.