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CVE-2022-50521

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: platform/x86: mxm-wmi: fix memleak in mxm_wmi_call_mx[ds|mx]() The ACPI buffer memory (out.pointer) returned by wmi_evaluate_me…

Published Oct 7, 2025CWE-401EPSS 0.16%

Overview

CVE-2022-50521 is a medium-severity vulnerability. It was published on October 7, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

platform/x86: mxm-wmi: fix memleak in mxm_wmi_call_mx[ds|mx]()

The ACPI buffer memory (out.pointer) returned by wmi_evaluate_method()

is not freed after the call, so it leads to memory leak.

The method results in ACPI buffer is not used, so just pass NULL to

wmi_evaluate_method() which fixes the memory leak.

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/14bb4bde3b7b2584734b13747b345caeeb41bea3Refgit.kernel.org/stable/c/17cd8c46cbec4e6ad593fb9159928b8e7608c11aRefgit.kernel.org/stable/c/379e7794c5e7485193d25d73614fbbd1e1387f6fRefgit.kernel.org/stable/c/3cf81501356c9e898ad94b2369ffc805f83f7d7bRefgit.kernel.org/stable/c/50ac517d6f5348b276f1f663799cf85dce521518Refgit.kernel.org/stable/c/5b0f81b0808235967868e01336c976e840217108Refgit.kernel.org/stable/c/727cc0147f5066e359aca65cc6cc5e6d64cc15d8Refgit.kernel.org/stable/c/87426ce3bd57ad414b6e2436434ef8128986a9a5

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50521?

CVE-2022-50521 is a medium-severity vulnerability. It was published on October 7, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-50521?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-50521?

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-2022-50521?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50521 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.

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