Intel QAT software drivers up to 1.12 on Windows input validation

Summaryinfo

A vulnerability, which was classified as critical, has been found in Intel QAT software drivers up to 1.12 on Windows. This issue affects some unknown processing. This manipulation causes input validation. This vulnerability is handled as CVE-2026-20767. It is possible to launch the attack on the local host. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Intel QAT software drivers up to 1.12 on Windows. It has been declared as critical. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at intel.com. This vulnerability is known as CVE-2026-20767 since 12/04/2025. The exploitation appears to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/19/2026).

Upgrading to version 1.13 eliminates this vulnerability.

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Productinfo

Type

• Hardware Driver Software

Vendor

• Intel

Name

• QAT software drivers

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12

License

• commercial

Website

• Vendor: https://www.intel.com/

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