CVE-2026-90025 Linux Kernel usb typec ucsi displayport - Denial of Service

Linux kernel usb typec ucsi displayport driver contains an out-of-bounds array index vulnerability caused by improper validation of GET_CURRENT_CAM response, letting attackers cause kernel crash, exploit requires invalid GET_CURRENT_CAM response from PPM.

CVSS base score 7.7 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.17% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Published
16 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version with the fix for OOB altmode array index.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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