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CVE-2025-21906

7.6 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: clean up ROC on failure If the firmware fails to start the session protection, then we do call iwl_mvm_roc_…

Published Apr 1, 2025CWE-665EPSS 0.22%

Overview

CVE-2025-21906 is a high-severity vulnerability. It was published on April 1, 2025 and has a CVSS 3.1 base score of 7.6 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.6, 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: iwlwifi: mvm: clean up ROC on failure

If the firmware fails to start the session protection, then we

do call iwl_mvm_roc_finished() here, but that won't do anything

at all because IWL_MVM_STATUS_ROC_P2P_RUNNING was never set.

Set IWL_MVM_STATUS_ROC_P2P_RUNNING in the failure/stop path.

If it started successfully before, it's already set, so that

doesn't matter, and if it didn't start it needs to be set to

clean up.

Not doing so will lead to a WARN_ON() later on a fresh remain-

on-channel, since the link is already active when activated as

it was never deactivated.

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/a88c18409b5d69f426d5acc583c053eac71756a3Refgit.kernel.org/stable/c/d1a12fcb9051bbf38b2e5af310ffb102a0fab6f9Refgit.kernel.org/stable/c/f9751163bffd3fe60794929829f810968c6de73d

How CyberStrike helps

Frequently asked questions

What is CVE-2025-21906?

CVE-2025-21906 is a high-severity vulnerability. It was published on April 1, 2025 and has a CVSS 3.1 base score of 7.6 (HIGH).

How severe is CVE-2025-21906?

This vulnerability has a CVSS 3.1 base score of 7.6, 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-2025-21906?

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-2025-21906?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-21906 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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