---
id: CVE-2026-98499
title: >-
  kernel: HID: wacom: fix OOB read in wacom_wac_pen_serial_enforce()
  (CVE-2026-98499)
summary: >-
  A flaw was found in the Linux kernel's Wacom Human Interface Device (HID)
  driver. When processing a device report descriptor with mismatched usage and
  count configurations, the driver can calculate an invalid memory offset and
  perform an o…
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H'
cvssSource: vendor
cwe: CWE-125
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 8
  - enterprise_linux 9
  - openshift_container_platform 4
published: '2026-10-18'
updated: '2026-10-24'
sourceUpdated: '2026-10-24T14:23:22+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98499.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98499.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98499'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2554883'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98499'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98499'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98499.mbox
  - url: 'https://git.kernel.org/stable/c/9aa62f967b6a4bb30aa3b778e02c8a5ca6bcde51'
  - url: 'https://git.kernel.org/stable/c/26471d954bbfbfb9032994f7f485802ee20e0582'
  - url: 'https://git.kernel.org/stable/c/456afe4707e23cc114ad833197f63b52bb8fd1e7'
  - url: 'https://git.kernel.org/stable/c/65e7c4b5366b770c60dfefac3f1d06e33a9e411e'
  - url: 'https://git.kernel.org/stable/c/eaa7d29341ef4b91e84ad097562982288a7c376c'
  - url: 'https://git.kernel.org/stable/c/c3129e6f26e18c0886ede7265f187a7ec289e1d1'
  - url: 'https://git.kernel.org/stable/c/4b09b7c84b8633cd041181616bd15bf5e73c164d'
  - url: 'https://git.kernel.org/stable/c/9aa237cf66495b2426ddde8532e9b08a0ed83aaa'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.0039
epssPercentile: 0.32991
scores:
  vendor: 6.8
  cna: 8.1
ingestedAt: '2026-10-18T15:45:12.291Z'
---

## Overview

A flaw was found in the Linux kernel's Wacom Human Interface Device (HID) driver. When processing a device report descriptor with mismatched usage and count configurations, the driver can calculate an invalid memory offset and perform an out-of-bounds read beyond the allocated report buffer. A local attacker could exploit this issue by connecting or emulating a specially crafted HID device, potentially allowing them to expose sensitive kernel memory to user space.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-24 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98499.json)

**kernel: HID: wacom: fix OOB read in wacom_wac_pen_serial_enforce()** — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-24.

Affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

No fix planned:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

Not affected:

- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7

## Remediation

Fix deferred