CVE-2026-5409 — Denial of Service
CVE-2026-5409 — Monero protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
What This Means For You
- If your environment is affected by CWE-674, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-5409 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-5409 - Monero Dissector Crash via Malformed Packet
title: CVE-2026-5409 - Monero Dissector Crash via Malformed Packet
id: scw-2026-04-30-ai-1
status: experimental
level: high
description: |
Detects the execution of Wireshark with command-line arguments related to the Monero protocol, which is specifically targeted by CVE-2026-5409. This indicates a potential attempt to trigger the denial-of-service vulnerability by processing a malformed Monero packet.
author: SCW Feed Engine (AI-generated)
date: 2026-04-30
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-5409/
tags:
- attack.impact
- attack.t1499
logsource:
category: process_creation
detection:
selection:
Image|endswith:
- 'wireshark.exe'
CommandLine|contains:
- 'monero'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-5409 | vulnerability | CVE-2026-5409 |
| CWE-674 | weakness | CWE-674 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 30, 2026 at 10:16 UTC |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
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