---
title: "CVE-2026-90025: Linux Kernel usb typec ucsi displayport - Denial of Service"
description: "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."
url: https://panop.io/threat-heartbeat/CVE-2026-90025/
---

# 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 ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-90025)

## 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

- [https://nvd.nist.gov/vuln/detail/CVE-2026-90025](https://nvd.nist.gov/vuln/detail/CVE-2026-90025)
- [https://git.kernel.org/stable/c/1ffed96ef986e2cdf986aa4a4506a5e6dcdf4456](https://git.kernel.org/stable/c/1ffed96ef986e2cdf986aa4a4506a5e6dcdf4456)
- [https://git.kernel.org/stable/c/33a81acd2d1d0667d4eff93cb90339fa53e617e8](https://git.kernel.org/stable/c/33a81acd2d1d0667d4eff93cb90339fa53e617e8)
- [https://git.kernel.org/stable/c/58e0ee293ec5e06cacbe3953ad44042f1473dae9](https://git.kernel.org/stable/c/58e0ee293ec5e06cacbe3953ad44042f1473dae9)
- [https://git.kernel.org/stable/c/83f1abd62cc134700ba92e1e2dc650a49a185497](https://git.kernel.org/stable/c/83f1abd62cc134700ba92e1e2dc650a49a185497)
- [https://git.kernel.org/stable/c/8fde7e4a366184e9a6aa95541e52933a73c00a74](https://git.kernel.org/stable/c/8fde7e4a366184e9a6aa95541e52933a73c00a74)
- [https://git.kernel.org/stable/c/ac9f878c468052af6571e8639ab1c3ae040b908f](https://git.kernel.org/stable/c/ac9f878c468052af6571e8639ab1c3ae040b908f)
- [https://git.kernel.org/stable/c/bdaaf3074aedce8f1b173cc363d61cff5f6a585f](https://git.kernel.org/stable/c/bdaaf3074aedce8f1b173cc363d61cff5f6a585f)
- [https://git.kernel.org/stable/c/04cec690b1fd9d1c4c314b91a10d8c68a3acfe18](https://git.kernel.org/stable/c/04cec690b1fd9d1c4c314b91a10d8c68a3acfe18)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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