What is CVE-2026-93806?

CVE-2026-93806 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10, affecting Linux kernel versions from 2.6.32 onward and patched in 6.1.189, 6.6.158, 6.12.111 and others. CVE-2026-93806 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-93806?

CVE-2026-93806 has a CVSS score of 8.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-93806?

Yes, CVE-2026-93806 has been patched. Fixed versions include 6.1.189, 6.6.158, 6.12.111 and others. If you are running Linux kernel 2.6.32 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-93806 actively exploited?

CVE-2026-93806 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-93806

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 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.

Package Linux Kernel

Published 2026-09-24

Last modified 2026-10-03

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

8.8

out of 10

High

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Affected versions

Linux kernel versions 2.6.32 and later are affected. Fixed in 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2 and their respective stable series.

Affected from

≥ 2.6.32

Fixed in

✓ 6.1.189 6.1.x ✓ 6.6.158 6.6.x ✓ 6.12.111 6.12.x ✓ 6.18.53 6.18.x ✓ 7.2

References

5 total

Details

CVE ID CVE-2026-93806

Severity High

CVSS score 8.8 / 10

CVSS version 3.1

Published 2026-09-24

Modified 2026-10-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-93806?

CVE-2026-93806 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10 . It affects Linux kernel versions from 2.6.32 onward and has been patched in 6.1.189, 6.6.158, 6.12.111 and others. CVE-2026-93806 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-93806?

CVE-2026-93806 has a CVSS score of 8.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-93806?

Yes. CVE-2026-93806 has been patched. Fixed versions include 6.1.189, 6.6.158, 6.12.111 and others. If you are running Linux kernel 2.6.32 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-93806 actively exploited?

No. CVE-2026-93806 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.