Paper/Archive/CVE-2021-24042

CVE-2021-24042

Facebook WhatsApp Desktop — The calling logic for WhatsApp for Android prior to v2.21.23, WhatsApp Business for Android prior to v2.21.23, WhatsApp for iOS prior to…

EPSS 1%CVSS 9.8

critical.is priorityof 100

CVSS 9.8 (ADP, NVD agree)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 70.1.701 × 2014.0 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

The calling logic for WhatsApp for Android prior to v2.21.23, WhatsApp Business for Android prior to v2.21.23, WhatsApp for iOS prior to v2.21.230, WhatsApp Business for iOS prior to v2.21.230, WhatsApp for KaiOS prior to v2.2143, WhatsApp Desktop prior to v2.2146 could have allowed an out-of-bounds write if a user makes a 1:1 call to a malicious actor.

Affected

ProductAffectedFixed inSource

WhatsApp Desktopunspecified – < v2.2146v2.2146CNA

WhatsApp for KaiOSunspecified – < v2.2143v2.2143CNA

WhatsApp Business for iOSunspecified – < v2.21.230v2.21.230CNA

WhatsApp for iOSunspecified – < v2.21.230v2.21.230CNA

WhatsApp Business for Androidunspecified – < v2.21.23v2.21.23CNA

WhatsApp for Androidunspecified – < v2.21.23v2.21.23CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refwhatsapp.com/security/advisories/2021