SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-1909

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.

CRITICAL 9.8EPSS 2.35%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

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
2.35% probability · 83th percentile
CISA KEV
Not listed
Weakness
CWE-416
Affected
whatsapp/whatsapp · whatsapp/whatsapp business
Source
cve-assign@fb.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.