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CVE-2026-93806

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: validate assoc response length before status and IE access cfg80211_rx_assoc_resp() initialises the status and…

Published Sep 24, 2026EPSS 0.25%

Overview

CVE-2026-93806 is a high-severity vulnerability. It was published on September 24, 2026 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: cfg80211: validate assoc response length before status and IE access

cfg80211_rx_assoc_resp() initialises the status and response-IE fields

of cfg80211_connect_resp_params from the management frame before

proving that the frame is long enough for those offsets. S1G and

regular association responses also have different IE offsets, but the

S1G path only patched resp_ie after the unsafe initialiser had already

run.

Defer resp_ie, resp_ie_len, and status to after the link-iteration

loop. Use a bool to remember whether the frame is S1G, then validate

the appropriate minimum length and set all three fields in a single

if/else block. Funnel short-frame and SME-reject cleanup through a

shared free_bss label for the abandon paths.

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/3bcaaaa4ad334053ceea2ea2f0623f22afe2e1acRefgit.kernel.org/stable/c/71be658246c903b9e96976a23c23800675896a1bRefgit.kernel.org/stable/c/78ac450ad4624d6b2999cb4eeb28916767f81247Refgit.kernel.org/stable/c/a57310600c1e2b9ada0f37c96e8f48aef47d3093Refgit.kernel.org/stable/c/b760113aeca2e9362d56bf9e9263373ffe6c8eb3

How CyberStrike helps

Frequently asked questions

What is CVE-2026-93806?

CVE-2026-93806 is a high-severity vulnerability. It was published on September 24, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-93806?

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-2026-93806?

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-2026-93806?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-93806 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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