Is CVE-2025-21906 in the CISA KEV catalog?

No. CVE-2025-21906 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-21906?

CVE-2025-21906 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2025-21906?

CVE-2025-21906 has an EPSS score of 0.17% (7th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-21906?

Upgrade linux on debian 13 to 6.12.19-1 or later. Fixes are available for 30 affected products.

CVE & CISA-KEV Catalog

CVE-2025-21906

MEDIUM

5.5

CVSS v3

NVD

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.

CWE-665

How to fix

Remediation Available

linuxDebian

Fixed in:6.12.19-1CVE-2025-21906

linux-azure-6.11Ubuntu

Fixed in:6.11.0-1018.18~24.04.1USN-7628-1

linux-gcp-6.11Ubuntu

Fixed in:6.11.0-1016.16~24.04.1USN-7605-1

linux-hwe-6.11Ubuntu

Fixed in:6.11.0-28.28~24.04.1USN-7605-1

linux-image-6.11.0-1015-lowlatencyUbuntu

Fixed in:6.11.0-1015.16~24.04.2USN-7605-2

linux-image-6.11.0-1015-lowlatency-64kUbuntu

Fixed in:6.11.0-1015.16~24.04.2USN-7605-2

linux-image-6.11.0-1016-gcpUbuntu

Fixed in:6.11.0-1016.16~24.04.1USN-7605-1

linux-image-6.11.0-1016-gcp-64kUbuntu

Fixed in:6.11.0-1016.16~24.04.1USN-7605-1

linux-image-6.11.0-1018-azureUbuntu

Fixed in:6.11.0-1018.18~24.04.1USN-7628-1

linux-image-6.11.0-1018-azure-fdeUbuntu

Fixed in:6.11.0-1018.18~24.04.1USN-7628-1

linux-image-6.11.0-1024-oemUbuntu

Fixed in:6.11.0-1024.24USN-7606-1

linux-image-6.11.0-28-genericUbuntu

Fixed in:6.11.0-28.28~24.04.1USN-7605-1

linux-image-6.11.0-28-generic-64kUbuntu

Fixed in:6.11.0-28.28~24.04.1USN-7605-1

linux-image-azureUbuntu

Fixed in:6.11.0-1018.18~24.04.1USN-7628-1

linux-image-azure-6.11Ubuntu

Fixed in:6.11.0-1018.18~24.04.1USN-7628-1

linux-image-azure-fdeUbuntu

Fixed in:6.11.0-1018.18~24.04.1USN-7628-1

linux-image-azure-fde-6.11Ubuntu

Fixed in:6.11.0-1018.18~24.04.1USN-7628-1

linux-image-azure-fde-edgeUbuntu

Fixed in:6.11.0-1018.18~24.04.1USN-7628-1

linux-image-gcpUbuntu

Fixed in:6.11.0-1016.16~24.04.1USN-7605-1

linux-image-gcp-64kUbuntu

Fixed in:6.11.0-1016.16~24.04.1USN-7605-1

linux-image-generic-64k-hwe-24.04Ubuntu

Fixed in:6.11.0-28.28~24.04.1USN-7605-1

linux-image-generic-hwe-24.04Ubuntu

Fixed in:6.11.0-28.28~24.04.1USN-7605-1

linux-image-lowlatency-6.11Ubuntu

Fixed in:6.11.0-1015.16~24.04.2USN-7605-2

linux-image-lowlatency-64k-6.11Ubuntu

Fixed in:6.11.0-1015.16~24.04.2USN-7605-2

linux-image-lowlatency-64k-hwe-24.04Ubuntu

Fixed in:6.11.0-1015.16~24.04.2USN-7605-2

linux-image-lowlatency-hwe-24.04Ubuntu

Fixed in:6.11.0-1015.16~24.04.2USN-7605-2

linux-image-oem-24.04bUbuntu

Fixed in:6.11.0-1024.24USN-7606-1

linux-image-virtual-hwe-24.04Ubuntu

Fixed in:6.11.0-28.28~24.04.1USN-7605-1

linux-lowlatency-hwe-6.11Ubuntu

Fixed in:6.11.0-1015.16~24.04.2USN-7605-2

linux-oem-6.11Ubuntu

Fixed in:6.11.0-1024.24USN-7606-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.17%probability of exploitation in 30 days

7thpercentile

Low risk: more likely to be exploited than 7% of all known CVEs.

References

Patch3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-31.