SARA / Free Tools / CVE / CVE-2019-3568

CVE-2019-3568 — WhatsApp VOIP Stack Buffer Overflow Vulnerability

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 fo

CVSS

— —

EPSS

45.56% (top 2.40%)

CWE

CWE-122

Published

2019-05-14T19:52:40.000Z

Last modified

2025-10-21T23:45:37.464Z

CVSS vector

—

CISA KEV — Actively Exploited

Added to KEV

2022-04-19

BOD 22-01 due

2022-05-10

Ransomware use

Unknown

View KEV detail

CVE-2019-3568 on CISA KEV →

01What is this vulnerability?

02Affected products

Vendor	Product	Versions
Facebook	WhatsApp for Android	2.19.134, unspecified
Facebook	WhatsApp Business for Android	2.19.44, unspecified
Facebook	WhatsApp for iOS	2.19.51, unspecified
Facebook	WhatsApp Business for iOS	2.19.51, unspecified
Facebook	WhatsApp for Windows Phone	2.18.348, unspecified
Facebook	WhatsApp for Tizen	2.18.15, unspecified

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-04-19. Ransomware use: Unknown.

04Recommended remediation

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

Published: 2019-05-14T19:52:40.000Z
Last modified: 2025-10-21T23:45:37.464Z
Added to CISA KEV: 2022-04-19
BOD 22-01 due: 2022-05-10

09References

www.facebook.com — https://www.facebook.com/security/advisories/cve-2019-3568
www.securityfocus.com — http://www.securityfocus.com/bid/108329

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