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[ CVE-2019-3568 · Published 14 May 2019 ]

WhatsApp VOIP Stack Buffer Overflow Vulnerability

Exploited · CISA KEV CVSS 9.8 EPSS 30%No fix listed yet

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-04-19
  • EPSS: 30% chance of exploitation in the next 30 days (higher than 98% of CVEs)
  • Critical severity: CVSS 9.8

[ Description ]Official 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.

CISA: 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.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 10 May 2022): Apply updates per vendor instructions.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References