---
id: CVE-2026-98575
title: >-
  kernel: nfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid()
  (CVE-2026-98575)
summary: >-
  A flaw was found in the Linux kernel's PN533 NFC (Near Field Communication)
  driver. An attacker capable of connecting a malicious or malfunctioning USB
  device can supply a crafted response frame with an arbitrary data length
  value. Because…
severity: medium
cvss: 6.2
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe: CWE-125
vendor: Red Hat
product: Linux
affected:
  - >-
    Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc <
    8db3b1e012a8b25078dfa1efabe3d0cd2916dcba
  - >-
    Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc <
    74b3fbc60907ee97e3af3249091f57351b53a6d6
  - >-
    Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc <
    8a0f1bb790d964893db7fc59febda9a534db07b3
  - >-
    Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc <
    ea82b7576793219fa10a8b545f8338998b2a9ce2
  - >-
    Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc <
    72b8b2126e854d6756a1aa4bdc66d7457b832294
  - >-
    Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc <
    e72cbedc4596e808d22dd2b9fff666ece76f8dd6
  - >-
    Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc <
    2450a388367231fb7dd798538f393af227c00c4d
  - >-
    Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc <
    b61732f47316d45f27706db7812950145d3327b5
  - Linux 4.7
published: '2026-10-18'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T03:34:58+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98575.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98575.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98575'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2554938'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98575'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98575'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98575.mbox
  - url: 'https://git.kernel.org/stable/c/8db3b1e012a8b25078dfa1efabe3d0cd2916dcba'
  - url: 'https://git.kernel.org/stable/c/74b3fbc60907ee97e3af3249091f57351b53a6d6'
  - url: 'https://git.kernel.org/stable/c/8a0f1bb790d964893db7fc59febda9a534db07b3'
  - url: 'https://git.kernel.org/stable/c/ea82b7576793219fa10a8b545f8338998b2a9ce2'
  - url: 'https://git.kernel.org/stable/c/72b8b2126e854d6756a1aa4bdc66d7457b832294'
  - url: 'https://git.kernel.org/stable/c/e72cbedc4596e808d22dd2b9fff666ece76f8dd6'
  - url: 'https://git.kernel.org/stable/c/2450a388367231fb7dd798538f393af227c00c4d'
  - url: 'https://git.kernel.org/stable/c/b61732f47316d45f27706db7812950145d3327b5'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00216
epssPercentile: 0.11992
ingestedAt: '2026-10-18T15:45:12.255Z'
---

## Overview

A flaw was found in the Linux kernel's PN533 NFC (Near Field Communication) driver. An attacker capable of connecting a malicious or malfunctioning USB device can supply a crafted response frame with an arbitrary data length value. Because the driver fails to validate this length against maximum frame boundaries before indexing the buffer, an out-of-bounds read occurs, potentially causing a Denial of Service (DoS) via system crash or disclosing sensitive kernel memory.

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98575.json)

**kernel: nfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid()** — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-20.

Not affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

## Remediation

Refer to the advisory for fix availability.