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CVE-2019-3568

86
FAUCET Score

CVE-2019-3568 is a critical buffer overflow vulnerability in the WhatsApp VOIP stack, allowing remote code execution through specially crafted RTCP packets. It affects various WhatsApp and WhatsApp Business versions across Android, iOS, Windows Phone, and Tizen. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. This CVE is actively exploited in the wild, as evidenced by its inclusion in CISA's KEV catalog and numerous media reports linking it to NSO Group's Pegasus spyware. Despite the active exploitation, public exploit intelligence like Metasploit or ExploitDB entries are currently unavailable, though it garners significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.18.15CPE matchmatch criteria
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:tizen:*:*
< 2.18.348CPE matchmatch criteria
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:windows_phone:*:*
< 2.19.51CPE matchmatch criteria
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:*
< 2.19.134CPE matchmatch criteria
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:*:*
< 2.19.44CPE matchmatch criteria
cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:android:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
39.17%
Probability of exploitation in next 30 days
EPSS Percentile
98.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Added to KEV · Apr 19, 2022
This CVE's current EPSS score of 0.3917 is in the 96th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
facebook.com / security/advisories/cve-2019-3568
Third Party Advisory
securityfocus.com / bid/108329
Broken LinkThird Party AdvisoryVDB Entry