OCTOBER 13, 2026
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Case File

CVE-2026-90025

HIGH · CVSS 7.7 EPSS 0.19%

Source: NVD + CISA KEV + EPSS · Published 2026-09-16 · Last synced 2026-10-13

CyberRota Analysis

AI-Generated

The vulnerability affects the UCSI DisplayPort driver in the Linux kernel, which may experience an out-of-bounds (OOB) error due to improper validation of the GET_CURRENT_CAM response. If an invalid response exceeding the defined array length is returned, it could lead to a kernel crash, impacting system stability. Linux administrators and developers utilizing affected kernel versions should prioritize applying updates to mitigate potential disruptions.

CVE
CVE-2026-90025
Severity
HIGH
CVSS
7.7
EPSS
0.19%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: displayport: Fix OOB altmode array index The UCSI displayport driver indexes the connector's port altmode array with the GET_CURRENT_CAM response after checking it is not 0xff. The port altmode array is UCSI_MAX_ALTMODES elements long. If the PPM returns an invalid GET_CURRENT_CAM response above UCSI_MAX_ALTMODES and not equal to 0xff, the kernel may crash with an array index OOB error. Update the UCSI displayport driver to verify the current cam is less than UCSI_MAX_ALTMODES before accessing the port altmode array.