CVE-2026-20793

Unchecked Return Value Leading to Denial of Service in Intel QAT Windows Drivers

Published May 12, 2026 CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Description
Unchecked return value 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 (none), integrity (none) and availability (low) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Intel quickassist Technology
CPEs cpe:2.3:a:intel:quickassist_technology:*:*:*:*:*:windows:*:*
Vendors & Products Intel quickassist Technology
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}

Type Values Removed Values Added
First Time appeared Intel
Intel qat Drivers
Vendors & Products Intel
Intel qat Drivers
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Unchecked Return Value Leading to Denial of Service in Intel QAT Windows Drivers
Type Values Removed Values Added
Description Unchecked return value 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 (none), integrity (none) and availability (low) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
Weaknesses CWE-252
References
Metrics cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
intel
Published
Updated
May 12, 2026, 5:17 PM
Reserved
Dec 9, 2025, 4:00 AM
Status
Analyzed
Published
May 12, 2026, 5:16 PM
Modified
Nov 11, 2026, 8:10 PM