CVE-2025-11626
📋 TL;DR
This vulnerability in Wireshark's MONGO dissector causes an infinite loop when processing specially crafted network packets, leading to denial of service. It affects Wireshark versions 4.4.0-4.4.9 and 4.2.0-4.2.13. Users who analyze MongoDB network traffic with vulnerable Wireshark versions are at risk.
💻 Affected Systems
- Wireshark
📦 What is this software?
Wireshark by Wireshark
Wireshark by Wireshark
⚠️ Risk & Real-World Impact
Worst Case
Wireshark crashes or becomes unresponsive, disrupting network analysis operations and potentially causing system instability if running with high privileges.
Likely Case
Wireshark application hangs or crashes when processing malicious MongoDB packets, requiring manual termination and restart.
If Mitigated
Minimal impact with proper network segmentation and limited exposure to untrusted traffic.
🎯 Exploit Status
Requires attacker to inject malicious packets into network traffic being analyzed; exploitation depends on network position and traffic capture.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Wireshark 4.4.10 or 4.2.14
Vendor Advisory: https://www.wireshark.org/security/wnpa-sec-2025-04.html
Restart Required: No
Instructions:
1. Download latest version from wireshark.org 2. Install over existing version 3. Verify installation with 'wireshark -v'
🔧 Temporary Workarounds
Disable MONGO dissector
allPrevent Wireshark from parsing MongoDB traffic by disabling the dissector
Edit preferences -> Protocols -> MONGO -> Uncheck 'Enable MONGO protocol'
🧯 If You Can't Patch
- Restrict Wireshark use to trusted networks only
- Implement network segmentation to limit exposure to untrusted MongoDB traffic
🔍 How to Verify
Check if Vulnerable:
Check Wireshark version: if between 4.4.0-4.4.9 or 4.2.0-4.2.13, you are vulnerableCheck Version:
wireshark -vVerify Fix Applied:
Verify version is 4.4.10+ or 4.2.14+ and test with sample MongoDB traffic📡 Detection & Monitoring
Log Indicators:
- Wireshark crash logs
- Application hang events in system logs
Network Indicators:
- Unusual MongoDB packet patterns targeting analysis systems
SIEM Query:
source="wireshark" AND (event="crash" OR event="hang")