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TI-2020-01813 Aliases CVE-2020-1886GHSA-m346-7x4h-3r6w

Buffer overflow in Meta WhatsApp for Android

Priority MEDIUM 41CWE-120Published · Updated

Key facts

Attack vector
Network
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-120 and the CVSS impact.

Summary

A buffer overflow in WhatsApp for Android prior to v2.20.11 and WhatsApp Business for Android prior to v2.20.2 could have allowed an out-of-bounds write via a specially crafted video stream after receiving and answering a malicious video call.

Why it matters now

EPSS 0.01242 69th percentileScored 2026-11-08
Fix Fixed WhatsApp for Android (Facebook): 2.20.11WhatsApp Business for Android (Facebook): 2.20.2

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MetaWhatsApp for Android2.20.11; before 2.20.112.20.11Patch availableCNA
MetaWhatsApp Business for Android2.20.2; before 2.20.22.20.2Patch availableCNA
  • WhatsApp for Android VendorMeta Affected 2.20.11; before 2.20.11 Fixed in 2.20.11 Patch available CNA
  • WhatsApp Business for Android VendorMeta Affected 2.20.2; before 2.20.2 Fixed in 2.20.2 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:*:*before 2.20.11VulnerableWhatsApp
cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:android:*:*before 2.20.2VulnerableWhatsApp
  • cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:*:* Versions before 2.20.11 Vulnerable ·WhatsApp
  • cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:android:*:* Versions before 2.20.2 Vulnerable ·WhatsApp

Remediation

  • Fix · CNA WhatsApp for Android (Facebook) Fixed in 2.20.11
  • Fix · CNA WhatsApp Business for Android (Facebook) Fixed in 2.20.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Facebook WhatsApp Business for Android, WhatsApp for Android 2.20.11, 2.20.2

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2020-01817 Improper input validation in Meta WhatsApp for AndroidPriority LOW 35
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-1886
  2. 2026-10-03 Alias added: GHSA-m346-7x4h-3r6w

References

Advisory 1

  • 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
See all 191 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences