Stack-based buffer overflow in Meta WhatsApp for Android
Priority LOW 36CWE-121Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
A stack-based buffer overflow could be triggered in WhatsApp by sending a specially crafted MP4 file to a WhatsApp user. The issue was present in parsing the elementary stream metadata of an MP4 file and could result in a DoS or RCE. This affects Android versions prior to 2.19.274, iOS versions prior to 2.19.100, Enterprise Client versions prior to 2.25.3, Business for Android versions prior to 2.19.104 and Business for iOS versions prior to 2.19.100.
Why it matters now
EPSS 0.01212 68th percentileScored 2026-11-07
Fix Fixed WhatsApp for Android (Facebook): 2.19.274WhatsApp for iOS (Facebook): 2.19.100+3 more products
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Meta | WhatsApp for Android | 2.19.274; before 2.19.274 | 2.19.274 | Patch available | CNA |
| Meta | WhatsApp for iOS | 2.19.100; before 2.19.100 | 2.19.100 | Patch available | CNA |
| Meta | WhatsApp for Windows Phone | up to 2.18.368 | — | No fix listed | CNA |
| Meta | WhatsApp Enterprise Client | 2.25.3; before 2.25.3 | 2.25.3 | Patch available | CNA |
| Meta | WhatsApp Business for Android | 2.19.104; before 2.19.104 | 2.19.104 | Patch available | CNA |
| Meta | WhatsApp Business for iOS | 2.19.100; before 2.19.100 | 2.19.100 | Patch available | CNA |
- WhatsApp for Android VendorMeta Affected 2.19.274; before 2.19.274 Fixed in 2.19.274 Patch available CNA
- WhatsApp for iOS VendorMeta Affected 2.19.100; before 2.19.100 Fixed in 2.19.100 Patch available CNA
- WhatsApp for Windows Phone VendorMeta Affected up to 2.18.368 Fixed in — No fix listed CNA
- WhatsApp Enterprise Client VendorMeta Affected 2.25.3; before 2.25.3 Fixed in 2.25.3 Patch available CNA
- WhatsApp Business for Android VendorMeta Affected 2.19.104; before 2.19.104 Fixed in 2.19.104 Patch available CNA
- WhatsApp Business for iOS VendorMeta Affected 2.19.100; before 2.19.100 Fixed in 2.19.100 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:windows:*:* | up to 2.18.368 | Vulnerable | |
| cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:* | before 2.19.100 | Vulnerable | |
| cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:*:* | before 2.19.274 | Vulnerable | |
| cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:* | before 2.19.100 | Vulnerable | |
| cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:android:*:* | before 2.19.104 | Vulnerable | |
| cpe:2.3:a:whatsapp:whatsapp_enterprise_client:*:*:*:*:*:*:*:* | before 2.25.3 | Vulnerable |
- cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:windows:*:* Versions up to 2.18.368 Vulnerable ·WhatsApp
- cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:* Versions before 2.19.100 Vulnerable ·WhatsApp
- cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:*:* Versions before 2.19.274 Vulnerable ·WhatsApp
- cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:* Versions before 2.19.100 Vulnerable ·WhatsApp
- cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:android:*:* Versions before 2.19.104 Vulnerable ·WhatsApp
- cpe:2.3:a:whatsapp:whatsapp_enterprise_client:*:*:*:*:*:*:*:* Versions before 2.25.3 Vulnerable ·WhatsApp
Remediation
- Fix · CNA WhatsApp for Android (Facebook) Fixed in 2.19.274
- Fix · CNA WhatsApp for iOS (Facebook) Fixed in 2.19.100
- Fix · CNA WhatsApp Enterprise Client (Facebook) Fixed in 2.25.3
- Fix · CNA WhatsApp Business for Android (Facebook) Fixed in 2.19.104
- Fix · CNA WhatsApp Business for iOS (Facebook) Fixed in 2.19.100
Timeline
- 2026-10-02 Threatist record created from CVE-2019-11931
- 2026-10-03 Alias added: GHSA-6c69-f792-7pq7
References
More Meta vulnerabilities
- TI-2025-34861 Deserialization of untrusted data in Meta react-server-dom-webpack KEVCVSS 3.1CRITICAL 10.0
- TI-2019-02633 Heap-based buffer overflow in Meta WhatsApp for Android KEVCVSS 3.1CRITICAL 9.8
- TI-2019-13416 Cross-site scripting in Meta WhatsApp Desktop KEVCVSS 3.1HIGH 8.2
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2025-34857 Incorrect authorization in Meta WhatsApp Desktop for Mac KEVCVSS 3.1MEDIUM 5.4
- TI-2025-34863 Deserialization of untrusted data in Meta react-server-dom-webpack CVSS 3.1HIGH 7.5
Sources
- CVE-2019-11931 · CVE Program
- CVE-2019-11931 · NVD
- FIRST EPSS
- GHSA-6c69-f792-7pq7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences