Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2022-49934

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Fix UAF in ieee80211_scan_rx() ieee80211_scan_rx() tries to access scan_req->flags after a null check, but a UA…

Published Jun 18, 2025CWE-416EPSS 0.26%

Overview

CVE-2022-49934 is a high-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: Fix UAF in ieee80211_scan_rx()

ieee80211_scan_rx() tries to access scan_req->flags after a

null check, but a UAF is observed when the scan is completed

and __ieee80211_scan_completed() executes, which then calls

cfg80211_scan_done() leading to the freeing of scan_req.

Since scan_req is rcu_dereference()'d, prevent the racing in

__ieee80211_scan_completed() by ensuring that from mac80211's

POV it is no longer accessed from an RCU read critical section

before we call cfg80211_scan_done().

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/4abc8c07a065ecf771827bde3c63fbbe4aa0c08bRefgit.kernel.org/stable/c/5d20c6f932f2758078d0454729129c894fe353e7Refgit.kernel.org/stable/c/60deb9f10eec5c6a20252ed36238b55d8b614a2cRefgit.kernel.org/stable/c/6eb181a64fdabf10be9e54de728876667da20255Refgit.kernel.org/stable/c/78a07732fbb0934d14827d8f09b9aa6a49ee1aa9Refgit.kernel.org/stable/c/9ad48cbf8b07f10c1e4a7a262b32a9179ae9dd2dRefgit.kernel.org/stable/c/c0445feb80a4d0854898118fa01073701f8d356bRefgit.kernel.org/stable/c/e0ff39448cea654843744c72c6780293c5082cb1

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49934?

CVE-2022-49934 is a high-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2022-49934?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-49934?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-49934?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49934 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2022

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999