CVE-2019-3568
WhatsApp VOIP Stack Buffer Overflow Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 10 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 30.08% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 19 April 2022 · due 10 May 2022
- Weakness
- CWE-122, CWE-787
- Affected
- whatsapp/whatsapp · whatsapp/whatsapp business
- Source
- cve-assign@fb.com
EPSS 30.1% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2019-3568
References
- http://www.securityfocus.com/bid/108329Broken Link, Third Party Advisory, VDB Entry
- https://www.facebook.com/security/advisories/cve-2019-3568Third Party Advisory
- http://www.securityfocus.com/bid/108329Broken Link, Third Party Advisory, VDB Entry
- https://www.facebook.com/security/advisories/cve-2019-3568Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-3568US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.