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CVE record · CVE-2019-3568

Heap-based buffer overflow in Facebook WhatsApp for Android and others

CVSS 9.8 CriticalCriticalIn CISA KEVEPSS 0.30 · 98th percentile

Critical, because:

  • In CISA’s KEV catalogue since 19 Apr 2022: it is known to be exploited.
  • CVSS score 9.8: 9.0 or more.
  • CVSS score 9.8 (7.0 or more) and EPSS 0.30 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the CVE Program (CNA: facebook) at 14 May 2019, 19:52 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Facebook WhatsApp for Android
  • affected 2.19.134
  • affected unspecified to before 2.19.134 custom
Facebook WhatsApp Business for Android
  • affected 2.19.44
  • affected unspecified to before 2.19.134 custom
Facebook WhatsApp for iOS
  • affected 2.19.51
  • affected unspecified to before 2.19.51 custom
Facebook WhatsApp Business for iOS
  • affected 2.19.51
  • affected unspecified to before 2.19.51 custom
Facebook WhatsApp for Windows Phone
  • affected 2.18.348
  • affected unspecified to before 2.18.348 custom
Facebook WhatsApp for Tizen
  • affected 2.18.15
  • affected unspecified to before 2.18.15 custom
Identifiers
CVE-2019-3568
CNA
facebook
Weakness (CWE)
CWE-122
Tags
Published
14 May 2019
Updated
21 Oct 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H ADP (CISA-ADP)
  • CISA KEV Listed since 19 Apr 2022: known to be exploited.
  • EPSS 0.30, the 98th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 14 May 2019. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.