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ExploitedIn CISA KEVFix available

CVE-2019-3568

Exploitation confirmed. First attested on 2022-04-19 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2019-05-14
  • Fixed in2.19.134 · 2.19.51 · 2.18.348 · 2.18.15
  • WeaknessCWE-122 · CWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A buffer overflow vulnerability in WhatsApp VOIP stack allowed remote code execution via specially crafted series of RTCP packets sent to a target phone number. The issue affects WhatsApp for Android prior to v2.19.134, WhatsApp Business for Android prior to v2.19.44, WhatsApp for iOS prior to v2.19.51, WhatsApp Business for iOS prior to v2.19.51, WhatsApp for Windows Phone prior to v2.18.348, and WhatsApp for Tizen prior to v2.18.15.

Timeline

dates in UTC
  1. 2019-05-1420:29CVE publishedNVD
  2. 2022-04-19Added to the CISA KEV catalogCISA KEV
  3. 2022-04-19Listed as exploited by GCVEGCVE
  4. 2022-04-19Exploitation first reportedCISA KEV
  5. 2025-02-0712:56SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-3568?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-3568?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Whatsapp
BranchAffectedFixed in
2.19< 2.19.1342.19.134
2.19< 2.19.512.19.51
2.18< 2.18.3482.18.348
2.18< 2.18.152.18.15
Whatsapp whatsapp business
BranchAffectedFixed in
2.19< 2.19.512.19.51
2.19< 2.19.442.19.44

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA6 products

As facebook, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Facebook WhatsApp for Android
    Affected
    • = 2.19.134no fix stated
    • < 2.19.134fixed in 2.19.134custom
  • Facebook WhatsApp Business for Android
    Affected
    • = 2.19.44no fix stated
    • < 2.19.134fixed in 2.19.134custom
  • Facebook WhatsApp for iOS
    Affected
    • = 2.19.51no fix stated
    • < 2.19.51fixed in 2.19.51custom
  • Facebook WhatsApp Business for iOS
    Affected
    • = 2.19.51no fix stated
    • < 2.19.51fixed in 2.19.51custom
  • Facebook WhatsApp for Windows Phone
    Affected
    • = 2.18.348no fix stated
    • < 2.18.348fixed in 2.18.348custom
  • Facebook WhatsApp for Tizen
    Affected
    • = 2.18.15no fix stated
    • < 2.18.15fixed in 2.18.15custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2019-08-13

Fix

  1. Update Whatsapp to 2.19.134 · 2.19.51 · 2.18.348 · 2.18.15
  2. CISA’s required action: Apply updates per vendor instructions.due 2022-05-10

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2022-04-19
Patch Due Date
2022-05-10
Ransomware Use
Unknown
Required Action
Apply updates per vendor instructions.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2019-05-14
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-cmw5-mmg8-r4fr

Frequently asked questions

What is CVE-2019-3568?

A buffer overflow vulnerability in WhatsApp VOIP stack allowed remote code execution via specially crafted series of RTCP packets sent to a target phone number. The issue affects WhatsApp for Android prior to v2.19.134, WhatsApp Business for Android prior to v2.19.44, WhatsApp for iOS prior to v2.19.51, WhatsApp Business for iOS prior to v2.19.51, WhatsApp for Windows Phone prior to v2.18.348, and WhatsApp for Tizen prior to v2.18.15.

Is CVE-2019-3568 actively exploited?

Yes. CVE-2019-3568 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-05-10.

What is the CVSS score for CVE-2019-3568?

CVE-2019-3568 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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