Vulnerability · Published Apr 6, 2021 · Assigned by facebook
CVE-2021-24027
High 7.5
In plain English
A high-severity security flaw in WhatsApp Business for Android from Facebook. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.8% (higher than 90% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)3.8%top 9.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Public PoC
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WhatsApp Business for Android | v2.21.4.18 | |
| WhatsApp for Android | unspecified – before v2.21.4.18 |
Weakness: CWE-524
References
- https://www.whatsapp.com/security/advisories/2021/ x_refsource_CONFIRM