CVE-2021-33115

Name: CVE-2021-33115
Creator: NVD / NIST
Published: 2022-02-09T23:15:15.547+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.68%

Last modified Jun 17, 2026

CVE-2021-33115 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Improper input validation for some Intel(R) PROSet/Wireless WiFi in UEFI may allow an unauthenticated user to potentially enable escalation of privilege via adjacent access.. EPSS estimates a 0.68% chance of exploitation in the next 30 days.

Description

Improper input validation for some Intel(R) PROSet/Wireless WiFi in UEFI may allow an unauthenticated user to potentially enable escalation of privilege via adjacent access.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.68%

47.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Intel	Uefi Wifi Driver	< 1.2.8.21337

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00582.htmlVendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00582.htmlVendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2021-33115?

Improper input validation for some Intel(R) PROSet/Wireless WiFi in UEFI may allow an unauthenticated user to potentially enable escalation of privilege via adjacent access.

How severe is CVE-2021-33115?

CVE-2021-33115 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.68% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33115?

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-2021-33115?

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

Scan your code now

Source: NVD / NIST