Critical severity · published Apr 6, 2021
CVE-2021-24026
A missing bounds check within the audio decoding pipeline for WhatsApp calls in WhatsApp for Android prior to v2.21.3, WhatsApp Business for Android prior to v2.21.3, WhatsApp for…
9.8
CVSS
1.4%
EPSS
No
On KEV
Description
A missing bounds check within the audio decoding pipeline for WhatsApp calls in WhatsApp for Android prior to v2.21.3, WhatsApp Business for Android prior to v2.21.3, WhatsApp for iOS prior to v2.21.32, and WhatsApp Business for iOS prior to v2.21.32 could have allowed an out-of-bounds write.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WH
Whatsapp · Whatsapp
before 2.21.3; before 2.21.3 · source: NVD
WB
Whatsapp Business · Whatsapp
before 2.21.3; before 2.21.32 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-24026
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-24026
Vendor Advisory
https://www.whatsapp.com/security/advisories/2021/
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