CVE-2021-26257

Name: CVE-2021-26257
Creator: NVD / NIST
Published: 2022-08-18T20:15:09.367+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.19%

Last modified Jun 17, 2026

CVE-2021-26257 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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 denial of service via local access.. EPSS estimates a 0.19% chance of exploitation in the next 30 days.

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 denial of service via local access.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.19%

8.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Intel	Wi-Fi 6 Ax411 Firmware	< 22.120
Intel	Wi-Fi 6 Ax211 Firmware	< 22.120
Intel	Wi-Fi 6 Ax210 Firmware	< 22.120
Intel	Wi-Fi 6 Ax201 Firmware	< 22.120
Intel	Wi-Fi 6 Ax200 Firmware	< 22.120
Intel	Wireless-Ac 9560 Firmware	< 22.120
Intel	Wireless-Ac 9462 Firmware	< 22.120
Intel	Wireless-Ac 9461 Firmware	< 22.120
Intel	Wireless-Ac 9260 Firmware	< 22.120
Intel	Dual Band Wireless-Ac 8265 Firmware	< 22.120
Intel	Dual Band Wireless-Ac 8260 Firmware	< 22.120
Intel	Dual Band Wireless-Ac 3168 Firmware	< 22.120
Intel	Wireless 7265 Firmware	< 22.120
Intel	Dual Band Wireless-Ac 3165 Firmware	< 22.120
Intel	Killer Wi-Fi 6e Ax1690 Firmware	< 22.120
Intel	Killer Wi-Fi 6e Ax1675 Firmware	< 22.120
Intel	Killer Wi-Fi 6 Ax1650 Firmware	< 22.120
Intel	Killer Wireless-Ac 1550 Firmware	< 22.120

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00628.htmlPatch, Vendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00628.htmlPatch, Vendor Advisory

Timeline

Published: Aug 18, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-26257?

How severe is CVE-2021-26257?

CVE-2021-26257 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.

How do I fix CVE-2021-26257?

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-2021-26257?

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

Scan your code now

Source: NVD / NIST