CVE-2021-24027

7.5 highEPSS 3.8%

High (7.5) in whatsapp. EPSS 3.8% chance of exploitation in the next 30 days.

A cache configuration issue prior to WhatsApp for Android v2.21.4.18 and WhatsApp Business for Android v2.21.4.18 may have allowed a third party with access to the device’s external storage to read cached TLS material.

Severity

CVSS 3.1

7.5 high

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

EPSS: 3.8% chance of exploitation in the next 30 days; higher than 90% of CVEs (scores of 2026-10-31)
CWE: CWE-524
Published: 2021-04-06
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/2021/
https://www.whatsapp.com/security/advisories/2021/

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