CVE-2026-6520 — Denial of Service

title: CVE-2026-6520 Wireshark OpenFlow v6 Dissector DoS Attempt
id: scw-2026-04-30-ai-1
status: experimental
level: medium
description: |
  Detects the execution of Wireshark with command-line arguments that could trigger the OpenFlow v6 dissector infinite loop vulnerability (CVE-2026-6520), leading to a Denial of Service. This rule specifically looks for Wireshark processes and a suspicious command-line pattern often associated with triggering dissector issues.
author: SCW Feed Engine (AI-generated)
date: 2026-04-30
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-6520/
tags:
  - attack.impact
  - attack.t1499
logsource:
    category: process_creation
detection:
  selection:
      Image|endswith:
          - 'wireshark.exe'
      CommandLine|contains:
          - '-o ""'
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse