Out-of-bounds write in Meta WhatsApp for Android
Priority MEDIUM 46CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- 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-787 and the CVSS impact.
Summary
A stack overflow in WhatsApp for Android prior to v2.20.196.16, WhatsApp Business for Android prior to v2.20.196.12, WhatsApp for iOS prior to v2.20.90, WhatsApp Business for iOS prior to v2.20.90, and WhatsApp for Portal prior to v173.0.0.29.505 could have allowed arbitrary code execution when parsing the contents of an RTP Extension header.
Why it matters now
EPSS 0.01889 79th percentileScored 2026-11-07
Fix Fixed WhatsApp for Android (Facebook): 2.20.196.16WhatsApp Business for Android (Facebook): 2.20.196.12+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 | 2.20.196.16; before 2.20.196.16 | 2.20.196.16 | Patch available | CNA |
| Meta | WhatsApp Business for Android | 2.20.196.12; before 2.20.196.12 | 2.20.196.12 | Patch available | CNA |
| Meta | WhatsApp for iOS | 2.20.90; before 2.20.90 | 2.20.90 | Patch available | CNA |
| Meta | WhatsApp Business for iOS | 2.20.90; before 2.20.90 | 2.20.90 | Patch available | CNA |
| Meta | WhatsApp for Portal | 173.0.0.29.505; before 173.0.0.29.505 | 173.0.0.29.505 | Patch available | CNA |
- WhatsApp for Android VendorMeta Affected 2.20.196.16; before 2.20.196.16 Fixed in 2.20.196.16 Patch available CNA
- WhatsApp Business for Android VendorMeta Affected 2.20.196.12; before 2.20.196.12 Fixed in 2.20.196.12 Patch available CNA
- WhatsApp for iOS VendorMeta Affected 2.20.90; before 2.20.90 Fixed in 2.20.90 Patch available CNA
- WhatsApp Business for iOS VendorMeta Affected 2.20.90; before 2.20.90 Fixed in 2.20.90 Patch available CNA
- WhatsApp for Portal VendorMeta Affected 173.0.0.29.505; before 173.0.0.29.505 Fixed in 173.0.0.29.505 Patch available CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:* | before 2.20.90 | Vulnerable | |
| cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:*:* | before 2.20.196.16 | Vulnerable | |
| cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:portal:*:* | before 173.0.0.29.505 | Vulnerable | |
| cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:* | before 2.20.90 | Vulnerable | |
| cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:android:*:* | before 2.20.196.12 | Vulnerable |
- cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:* Versions before 2.20.90 Vulnerable ·WhatsApp
- cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:*:* Versions before 2.20.196.16 Vulnerable ·WhatsApp
- cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:portal:*:* Versions before 173.0.0.29.505 Vulnerable ·WhatsApp
- cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:* Versions before 2.20.90 Vulnerable ·WhatsApp
- cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:android:*:* Versions before 2.20.196.12 Vulnerable ·WhatsApp
Remediation
- Fix · CNA WhatsApp for Android (Facebook) Fixed in 2.20.196.16
- Fix · CNA WhatsApp Business for Android (Facebook) Fixed in 2.20.196.12
- Fix · CNA WhatsApp for iOS (Facebook) Fixed in 2.20.90
- Fix · CNA WhatsApp Business for iOS (Facebook) Fixed in 2.20.90
- Fix · CNA WhatsApp for Portal (Facebook) Fixed in 173.0.0.29.505
Timeline
- 2026-10-02 Threatist record created from CVE-2020-1907
- 2026-10-03 Alias added: GHSA-3pw2-rq3w-q74q
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-2020-1907 · CVE Program
- CVE-2020-1907 · NVD
- FIRST EPSS
- GHSA-3pw2-rq3w-q74q · 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