CVE-2019-3568 — A buffer overflow vulnerability in WhatsApp VOIP stack allowed remote code execution via…¶
Key facts
CVE-2019-3568 is a Critical (9.8) vulnerability: A buffer overflow vulnerability in WhatsApp VOIP stack allowed remote code execution via…. This entry ships a detection-only PoC and a Docker test lab. It is on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2022-04-19), confirming active exploitation in the wild.
Actively exploited — on the CISA KEV catalog
CVE-2019-3568 is listed on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2022-04-19), confirming exploitation in the wild. Federal remediation deadline: 2022-05-10. Prioritise patching and deploy the detection and prevention rules below.
| CVE | CVE-2019-3568 |
| Severity | Critical (9.8) |
| CISA KEV | Actively exploited (added 2022-04-19) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2019/CVE-2019-3568/ |
Details¶
English | 한국어
Description¶
A buffer overflow vulnerability in WhatsApp VOIP stack allowed remote code execution via specially crafted series of RTCP packets sent to a target phone number. The issue affects WhatsApp for Android prior to v2.19.134, WhatsApp Business for Android prior to v2.19.44, WhatsApp for iOS prior to v2.19.51, WhatsApp Business for iOS prior to v2.19.51, WhatsApp for Windows Phone prior to v2.18.348, and WhatsApp for Tizen prior to v2.18.15.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2019-3568 |
| Type | RCE |
| CVSS Score | 9.8 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2019/CVE-2019-3568/poc.py
Usage¶
# Run PoC against target
python3 poc.py --target <TARGET_URL>
# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>
⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.
Test Lab¶
This repository includes a Docker-based test environment with both vulnerable and patched applications.
Quick Start¶
# Clone and navigate to CVE directory
cd CVE-2019-3568
# Start both applications
docker-compose up -d
# Run tests
./run-tests.sh # Linux/Mac
./run-tests.ps1 # Windows PowerShell
Application Endpoints¶
| Application | URL | Status |
|---|---|---|
| Vulnerable App | http://localhost:8080 | Shows vulnerability |
| Patched App | http://localhost:8081 | Demonstrates fix |
Directory Structure¶
├── README.md # English documentation
├── README_KO.md # Korean documentation
├── poc.py # PoC detection script
├── docker-compose.yml # Container orchestration
├── run-tests.sh # Linux/Mac test runner
├── run-tests.ps1 # Windows test runner
├── vulnerable-app/ # Vulnerable version
│ ├── app.py
│ ├── Dockerfile
│ └── requirements.txt
└── patched-app/ # Fixed version
├── app.py
├── Dockerfile
└── requirements.txt
References¶
- http://www.securityfocus.com/bid/108329
- https://www.facebook.com/security/advisories/cve-2019-3568
- http://www.securityfocus.com/bid/108329
- https://www.facebook.com/security/advisories/cve-2019-3568
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-3568
Generated by PoC Generator on 2026-07-02T10:18:35.575364458
Frequently asked questions¶
What is CVE-2019-3568?¶
CVE-2019-3568 is a Critical (9.8) vulnerability: A buffer overflow vulnerability in WhatsApp VOIP stack allowed remote code execution via…. This entry ships a detection-only PoC and a Docker test lab. It is on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2022-04-19), confirming active exploitation in the wild.
How do I detect CVE-2019-3568?¶
Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.
How do I block or mitigate CVE-2019-3568?¶
Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.
Is CVE-2019-3568 actively exploited?¶
Yes. CVE-2019-3568 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, added 2022-04-19, which means it has been exploited in the wild. CISA set a federal remediation deadline of 2022-05-10. Prioritise patching and deploy the detection and prevention rules above.
For authorized security testing and research only. See the full source and NVD record.