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Vulnerability record · CVE-2021-33847 · published 18 August 2022

CVE-2021-33847: Intel wi-fi 6 ax411 firmware memory buffer overflow vulnerability

Intel · Wi Fi 6 Ax411 Firmware

Improper buffer restrictions in firmware for some Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products before version 22.120 may allow an authenticated user to potentially enable escalation of privilege via local access.

7.8 CVSS 3.1 High EPSS 0.22% · top 89.0% CWE-119 · Memory buffer overflow
7.8CVSS 3.1 base score
0.22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
18Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Improper buffer restrictions in firmware for some Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products before version 22.120 may allow an authenticated user to potentially enable escalation of privilege via local access.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

18 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00628.html PatchVendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00628.html PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2021-0162Intel amt ac 8260 firmware improper input validation vulnerabilityImproper input validation in software for Intel(R) PROSet/Wireless Wi-Fi and Killer(TM) Wi-Fi in Windows 10 and 11 may allow an unauthenticated user …EPSS 0.41%8.8CVE-2021-0163Intel amt ac 8260 firmware improper input validation vulnerabilityImproper Validation of Consistency within input in software for Intel(R) PROSet/Wireless Wi-Fi and Killer(TM) Wi-Fi in Windows 10 and 11 may allow an…EPSS 0.41%8.8CVE-2020-12321Intel dual band wireless-ac 3168 firmware vulnerabilityImproper buffer restriction in some Intel(R) Wireless Bluetooth(R) products before version 21.110 may allow an unauthenticated user to potentially en…EPSS 0.98%8.8CVE-2019-11152Intel wi-fi 6 ax201 firmware out-of-bounds write vulnerabilityMemory corruption issues in Intel(R) WIFI Drivers before version 21.40 may allow a privileged user to potentially enable escalation of privilege, den…EPSS 0.62%8.4CVE-2021-0066Intel amt ac 8260 firmware improper input validation vulnerabilityImproper input validation in firmware for Intel(R) PROSet/Wireless Wi-Fi in multiple operating systems and Killer(TM) Wi-Fi in Windows 10 and 11 may …EPSS 0.32%7.8CVE-2022-21181Intel wireless-ac 9560 firmware improper input validation vulnerabilityImproper input validation for some Intel(R) PROSet/Wireless WiFi and Killer(TM) WiFi products may allow a privileged user to potentially enable escal…EPSS 0.27%7.8CVE-2021-37409Intel wireless-ac 9560 firmware incorrect authorization vulnerabilityImproper access control for some Intel(R) PROSet/Wireless WiFi and Killer(TM) WiFi products may allow a privileged user to potentially enable escalat…EPSS 0.24%7.8CVE-2021-0164Intel amt ac 8260 firmware vulnerabilityImproper access control in firmware for Intel(R) PROSet/Wireless Wi-Fi in multiple operating systems and Killer(TM) Wi-Fi in Windows 10 and 11 may al…EPSS 0.30%

Source: NIST National Vulnerability Database (record CVE-2021-33847), CISA KEV, FIRST EPSS (scores of 2026-10-07). This page is refreshed as NVD updates the record.