CVE-2026-6525 — IEEE 802.11 protocol dissector crash in Wireshark 4.6.0 to
CVE-2026-6525 — IEEE 802.11 protocol dissector crash in Wireshark 4.6.0 to 4.6.4
What This Means For You
- If your environment is affected by CWE-476, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-6525 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-2026-6525 - Wireshark IEEE 802.11 Dissector Crash via Malformed Packet
Sigma YAML — free preview
title: CVE-2026-6525 - Wireshark IEEE 802.11 Dissector Crash via Malformed Packet
id: scw-2026-05-02-ai-1
status: experimental
level: high
description: |
Detects the execution of Wireshark with a command line indicating it's processing a packet capture file. This rule is specific to CVE-2026-6525, which exploits a crash in the IEEE 802.11 protocol dissector when processing malformed packets within a capture file. The presence of '-r' and a '.pcap' file extension in the command line suggests an attempt to open and dissect a potentially malicious packet capture.
author: SCW Feed Engine (AI-generated)
date: 2026-05-02
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-6525/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: process_creation
detection:
selection:
Image|endswith:
- 'wireshark.exe'
CommandLine|contains:
- '-r'
- '.pcap'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-6525 | vulnerability | CVE-2026-6525 |
| CWE-476 | weakness | CWE-476 |
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 02, 2026 at 15:16 UTC |
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