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TI-2020-01830 Aliases CVE-2020-1903GHSA-2468-6hhw-x65x

Uncontrolled resource consumption in Meta WhatsApp for iOS

Priority LOW 26CWE-400Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.

Summary

An issue when unzipping docx, pptx, and xlsx documents in WhatsApp for iOS prior to v2.20.61 and WhatsApp Business for iOS prior to v2.20.61 could have resulted in an out-of-memory denial of service. This issue would have required the receiver to explicitly open the attachment if it was received from a number not in the receiver's WhatsApp contacts.

Why it matters now

EPSS 0.00658 51st percentileScored 2026-11-07
Fix Fixed WhatsApp for iOS (Facebook): 2.20.61WhatsApp Business for iOS (Facebook): 2.20.61

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
MetaWhatsApp for iOS2.20.61; before 2.20.612.20.61Patch availableCNA
MetaWhatsApp Business for iOS2.20.61; before 2.20.612.20.61Patch availableCNA
  • WhatsApp for iOS VendorMeta Affected 2.20.61; before 2.20.61 Fixed in 2.20.61 Patch available CNA
  • WhatsApp Business for iOS VendorMeta Affected 2.20.61; before 2.20.61 Fixed in 2.20.61 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:*before 2.20.61VulnerableWhatsApp
cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:*before 2.20.61VulnerableWhatsApp
  • cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:* Versions before 2.20.61 Vulnerable ·WhatsApp
  • cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:* Versions before 2.20.61 Vulnerable ·WhatsApp

Remediation

  • Fix · CNA WhatsApp for iOS (Facebook) Fixed in 2.20.61
  • Fix · CNA WhatsApp Business for iOS (Facebook) Fixed in 2.20.61

Fixed in the same release

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

  • Release ·

    Facebook WhatsApp Business for iOS, WhatsApp for iOS 2.20.61

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2020-01831 Path traversal in Meta WhatsApp for iOSPriority LOW 27
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-1903
  2. 2026-10-03 Alias added: GHSA-2468-6hhw-x65x
  3. 2026-10-09 EPSS moved to the 50th–90th percentile

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