---
id: CVE-2026-3203
title: Buffer Over-read in Wireshark
summary: >-
  RF4CE Profile protocol dissector crash in Wireshark 4.6.0 to 4.6.3 and 4.4.0
  to 4.4.13 allows denial of service
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-126
vendor: Wireshark Foundation
product: Wireshark
affected:
  - Wireshark >= 4.6.0 < 4.6.4
  - Wireshark >= 4.4.0 < 4.4.14
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-02-25T20:35:47.008169Z'
published: '2026-02-25'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T18:35:21.214Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-3203'
references:
  - url: 'https://www.wireshark.org/security/wnpa-sec-2026-07.html'
  - url: 'https://gitlab.com/wireshark/wireshark/-/issues/21009'
    label: 'GitLab Issue #21009'
tags:
  - cve.org
epss: 0.00157
epssPercentile: 0.05283
ingestedAt: '2026-09-17T19:26:25.354Z'
---

## Overview

RF4CE Profile protocol dissector crash in Wireshark 4.6.0 to 4.6.3 and 4.4.0 to 4.4.13 allows denial of service

## Affected

- `Wireshark >= 4.6.0 < 4.6.4`
- `Wireshark >= 4.4.0 < 4.4.14`

## Remediation

Upgrade to version 4.6.4 or above