What is CVE-2026-100078?

CVE-2026-100078 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.17 onward and patched in 6.1.188, 6.6.157, 6.12.110 and others. CVE-2026-100078 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-100078?

CVE-2026-100078 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2026-100078?

Yes, CVE-2026-100078 has been patched. Fixed versions include 6.1.188, 6.6.157, 6.12.110 and others. If you are running Linux kernel 5.17 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-100078 actively exploited?

CVE-2026-100078 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-100078

Medium

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mei: pass correct argument to function The first argument to iwl_mei_write_cyclic_buf() should be the cldev but the q_head pointer is passed instead. Fix it.

Package Linux Kernel

Published 2026-09-25

Last modified 2026-10-02

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 5.17 and later are affected. Fixed in 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6, 7.3-rc1 and their respective stable series.

Affected from

≥ 5.17

Fixed in

✓ 6.1.188 6.1.x ✓ 6.6.157 6.6.x ✓ 6.12.110 6.12.x ✓ 6.18.52 6.18.x ✓ 7.2.6 7.2.x ✓ 7.3-rc1

References

6 total

Kernel Git
https://git.kernel.org/stable/c/034445e19f12bb8771c58e2ecf1fbd6eac9b5fac

Patch
Kernel Git
https://git.kernel.org/stable/c/082b353c05b8eaf07e03fc1918c176cd3c216e25

Patch
Kernel Git
https://git.kernel.org/stable/c/6b7d5abf3e374ca3af31ceb6b9b2efc7a48afde3

Patch
Kernel Git
https://git.kernel.org/stable/c/905f57aefde4f4092a411c8a55856182fb1c7598

Patch
Kernel Git
https://git.kernel.org/stable/c/ee91ae7f5815345612d8c0afd5d7efed361bcdb5

Patch

Showing 5 of 6 references View all on NVD

Details

CVE ID CVE-2026-100078

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-09-25

Modified 2026-10-02

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-100078?

CVE-2026-100078 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.17 onward and has been patched in 6.1.188, 6.6.157, 6.12.110 and others. CVE-2026-100078 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-100078?

CVE-2026-100078 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2026-100078?

Yes. CVE-2026-100078 has been patched. Fixed versions include 6.1.188, 6.6.157, 6.12.110 and others. If you are running Linux kernel 5.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-100078 actively exploited?

No. CVE-2026-100078 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.