---
title: "CVE-2026-89999: Linux Kernel - Out-of-Bounds Read"
description: "Linux kernel contains an out-of-bounds read vulnerability in HID wacom_intuos_pro2_bt_irq caused by lack of report length validation before parsing, letting attackers with malicious Bluetooth devices cause memory reads beyond buffer limits, exploit requires a paired or spoofed Bluetooth peripheral sending undersized reports."
url: https://panop.io/threat-heartbeat/CVE-2026-89999/
---

# CVE-2026-89999 Linux Kernel - Out-of-Bounds Read

Linux kernel contains an out-of-bounds read vulnerability in HID wacom\_intuos\_pro2\_bt\_irq caused by lack of report length validation before parsing, letting attackers with malicious Bluetooth devices cause memory reads beyond buffer limits, exploit requires a paired or spoofed Bluetooth peripheral sending undersized reports.

CVSS base score 8.1 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.36% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-89999)

## Details

Type

Out-of-Bounds Read

Impact

Information Disclosure

CVSS vector

CVSS:3.1/AV:A/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 containing the fix for wacom\_intuos\_pro2\_bt\_irq report length validation.

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-2026-89999](https://nvd.nist.gov/vuln/detail/CVE-2026-89999)
- [https://git.kernel.org/stable/c/d2844f3fcd058113acbe0aa110ab13ef28b98d9f](https://git.kernel.org/stable/c/d2844f3fcd058113acbe0aa110ab13ef28b98d9f)
- [https://git.kernel.org/stable/c/0cdc6cb242dd8d2731956fdf3390de094482a4b2](https://git.kernel.org/stable/c/0cdc6cb242dd8d2731956fdf3390de094482a4b2)
- [https://git.kernel.org/stable/c/114af803e409a68e52516810ecd24df4d8ce0c68](https://git.kernel.org/stable/c/114af803e409a68e52516810ecd24df4d8ce0c68)
- [https://git.kernel.org/stable/c/1bfc0547b81d5861443420d19b5ed2fd533cd17f](https://git.kernel.org/stable/c/1bfc0547b81d5861443420d19b5ed2fd533cd17f)
- [https://git.kernel.org/stable/c/74ec08f7b81c2726578039ca6dea0fec136c38ea](https://git.kernel.org/stable/c/74ec08f7b81c2726578039ca6dea0fec136c38ea)
- [https://git.kernel.org/stable/c/84781a1f3c5dc6650480be9329e6e8528939eaa0](https://git.kernel.org/stable/c/84781a1f3c5dc6650480be9329e6e8528939eaa0)
- [https://git.kernel.org/stable/c/96dd0af7597aba2d80cc97e2f66e8b72d30ba125](https://git.kernel.org/stable/c/96dd0af7597aba2d80cc97e2f66e8b72d30ba125)
- [https://git.kernel.org/stable/c/a8e04f3f894ccb52cfcd7e60125a9f35da4a616d](https://git.kernel.org/stable/c/a8e04f3f894ccb52cfcd7e60125a9f35da4a616d)

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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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