What is CVE-2026-98199?

CVE-2026-98199 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 5.10 onward and patched in 5.15.222, 6.1.189, 6.6.158 and others. CVE-2026-98199 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-98199?

CVE-2026-98199 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-98199?

Yes, CVE-2026-98199 has been patched. Fixed versions include 5.15.222, 6.1.189, 6.6.158 and others. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-98199 actively exploited?

CVE-2026-98199 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-98199

In the Linux kernel, the following vulnerability has been resolved: hwmon: (pmbus/core) increase number of phases and add new mask Increase the number of phases to 16 as a new upcoming device supports such a number. While at it, add a new mask for controlling the source of the output voltage. Note (groeck): This patch was meant to prepare for support of MAX20826 and compatible devices, which support more than 10 phases per page. However, Sashiko reports that the mp2975 driver already supports up to 14 phases, and the mp2856 driver supports up to 12 phases. This already has the potential for out-of-bounds writes when probing the affected chips, making this patch a bug fix.

Package Linux Kernel

Published 2026-10-06

Last modified 2026-10-06

Patch available

Yes

Affected versions

Linux kernel versions 5.10 and later are affected. Fixed in 5.15.222, 6.1.189, 6.6.158, 6.12.112, 6.18.54, 7.2.8, 7.3-rc4 and their respective stable series.

Affected from

≥ 5.10

Fixed in

✓ 5.15.222 5.15.x ✓ 6.1.189 6.1.x ✓ 6.6.158 6.6.x ✓ 6.12.112 6.12.x ✓ 6.18.54 6.18.x ✓ 7.2.8 7.2.x ✓ 7.3-rc4

References

7 total

Showing 5 of 7 references View all on NVD

Frequently asked questions

What is CVE-2026-98199?

CVE-2026-98199 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.10 onward and has been patched in 5.15.222, 6.1.189, 6.6.158 and others. CVE-2026-98199 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2026-98199?

Yes. CVE-2026-98199 has been patched. Fixed versions include 5.15.222, 6.1.189, 6.6.158 and others. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-98199 actively exploited?

No. CVE-2026-98199 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.