CVE-2020-1909

9.8 criticalEPSS 2.3%

Critical (9.8) in whatsapp. EPSS 2.3% chance of exploitation in the next 30 days.

A use-after-free in a logging library in WhatsApp for iOS prior to v2.20.111 and WhatsApp Business for iOS prior to v2.20.111 could have resulted in memory corruption, crashes and potentially code execution. This could have happened only if several events occurred together in sequence, including receiving an animated sticker while placing a WhatsApp video call on hold.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 2.3% chance of exploitation in the next 30 days; higher than 83% of CVEs (scores of 2026-10-31)
CWE: CWE-416
Published: 2020-11-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

whatsapp:whatsapp
whatsapp:whatsapp_business

References

https://www.whatsapp.com/security/advisories/2020/
https://www.whatsapp.com/security/advisories/2020/

Check your stack JSON