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CVE-2025-38013

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request Make sure that n_channels is set after allocating…

Published Jun 18, 2025CWE-129EPSS 0.20%

Overview

CVE-2025-38013 is a high-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

wifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request

Make sure that n_channels is set after allocating the

struct cfg80211_registered_device::int_scan_req member. Seen with

syzkaller:

UBSAN: array-index-out-of-bounds in net/mac80211/scan.c:1208:5

index 0 is out of range for type 'struct ieee80211_channel *[] __counted_by(n_channels)' (aka 'struct ieee80211_channel *[]')

This was missed in the initial conversions because I failed to locate

the allocation likely due to the "sizeof(void *)" not matching the

"channels" array type.

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/07c737d9ab02c07b562aefcca16aa95077368e24Refgit.kernel.org/stable/c/82bbe02b2500ef0a62053fe2eb84773fe31c5a0aRefgit.kernel.org/stable/c/e3192e999a0d05ea0ba2c59c09afaf0b8ee70b81Refgit.kernel.org/stable/c/fde33ab3c052a302ee8a0b739094b88ceae4dd67

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38013?

CVE-2025-38013 is a high-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38013?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-38013?

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-2025-38013?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38013 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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