CVE-2026-21407

Deadlock for some Intel(R) Arc(TM) B-series graphics cards within Ring 1: Device Drivers 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 with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

• CWE-833

• https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01440.html

Published

Nov 10, 2026

Last Modified

Nov 13, 2026

Status

Awaiting Analysis

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