CVE-2019-3568

Q: How do I fix CVE-2019-3568?

Published advisories record a fix for 2 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Q: Is CVE-2019-3568 being actively exploited?

Yes. CVE-2019-3568 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2022-05-10. Treat it as a priority whatever its CVSS score says.

Q: How severe is CVE-2019-3568?

CVE-2019-3568 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2019-3568 affect?

Published advisories record a fix for whatsapp (NVD), whatsapp business (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICALCISA KEVEPSS 98th pctl

9.8

CVSS v3

NVD

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.

CWE-122Heap-based Buffer Overflow CWE-787Out-of-bounds Write

How to fix

Remediation Available

whatsappNVD

Affected:< 2.18.15Fixed in:2.18.15CVE-2019-3568derived from NVD

Affected:< 2.18.348Fixed in:2.18.348CVE-2019-3568derived from NVD

Affected:< 2.19.134Fixed in:2.19.134CVE-2019-3568derived from NVD

Affected:< 2.19.51Fixed in:2.19.51CVE-2019-3568derived from NVD

whatsapp businessNVD

Affected:< 2.19.44Fixed in:2.19.44CVE-2019-3568derived from NVD

Affected:< 2.19.51Fixed in:2.19.51CVE-2019-3568derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

39.17%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

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.

Apply updates per vendor instructions.

Remediation due: 2022-05-10

References

Third-Party Advisory2

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-122 (Heap-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2024-26256	High	7.8	88%	-	Fix
CVE-2020-25687	Medium	5.9	87%	-	Fix
CVE-2009-3459	High	8.8	87%	KEV	Fix
CVE-2021-21017	High	8.8	86%	KEV	-
CVE-2020-25683	Medium	5.9	86%	-	Fix

Common questions

How do I fix CVE-2019-3568?

Published advisories record a fix for 2 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2019-3568 being actively exploited?

Yes. CVE-2019-3568 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2022-05-10. Treat it as a priority whatever its CVSS score says.

How severe is CVE-2019-3568?

CVE-2019-3568 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2019-3568 affect?

Published advisories record a fix for whatsapp (NVD), whatsapp business (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2019-3568

Markdown

[![CVE-2019-3568](https://tridentstack.com/cve/badge/CVE-2019-3568.svg)](https://tridentstack.com/cve/CVE-2019-3568)

HTML

<a href="https://tridentstack.com/cve/CVE-2019-3568"><img src="https://tridentstack.com/cve/badge/CVE-2019-3568.svg" alt="CVE-2019-3568"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it works Start freeThis CVE lookup is free and always will be.

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-24.