CVE-2026-21407

MediumCVSS 6.8/10Last modified Nov 13, 2026

Description

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.

Metrics

CVSS 4.0 6.8/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness enumeration

CWE-833

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
n/a	Intel(R) Arc(TM) B-series graphics cards	See references

References

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

Timeline

Published: Nov 10, 2026
Last modified: Nov 13, 2026
NVD status: Awaiting Analysis

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