CVE-2021-33155

Name: CVE-2021-33155
Creator: NVD / NIST
Published: 2022-02-09T23:15:15.82+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.7/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2021-33155 is a medium-severity vulnerability rated 5.7/10 on the CVSS scale. Improper input validation in firmware for some Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products before version 22.100 may allow an authenticated user to potentially enable denial of service via adjacent access.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

Improper input validation in firmware for some Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products before version 22.100 may allow an authenticated user to potentially enable denial of service via adjacent access.

Metrics

CVSS 3.1

5.7/10

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

EPSS Probability

0.46%

36.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Intel	Ax211 Firmware	< 22.100
Intel	Ax210 Firmware	< 22.100
Intel	Ax201 Firmware	< 22.100
Intel	Ax200 Firmware	< 22.100
Intel	Ac 9560 Firmware	< 22.100
Intel	Ac 9462 Firmware	< 22.100
Intel	Ac 9461 Firmware	< 22.100
Intel	Ac 9260 Firmware	< 22.100
Intel	Ac 8265 Firmware	< 22.100
Intel	Ac 8260 Firmware	< 22.100
Intel	Ac3168 Firmware	< 22.100
Intel	Ac 7265 Firmware	< 22.100
Intel	Ac 3165 Firmware	< 22.100
Intel	Ax1675 Firmware	< 22.100
Intel	Ax1650 Firmware	< 22.100
Intel	Ac 1550 Firmware	< 22.100

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00604.htmlVendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00604.htmlVendor Advisory

Timeline

Published: Feb 9, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-33155?

How severe is CVE-2021-33155?

CVE-2021-33155 has a CVSS score of 5.7/10 (MEDIUM severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33155?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-33155?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST