A recent vulnerability was found by researchers from a German security firm. Fixes are available via the Android February 2020 Security Bulletin. The bug is identified as CVE-2020-002; when exploited can result in remote-code-execution without any user interaction with elevated privileges.
A security researcher by the name of Gal Weizman from PerimeterX found multiple flaws within WhatsApp that could potentially lead to remote-code-execution (RCE). The flaws enabled vulnerabilities such as Open-Redirect, Persistent-XSS, CSP-Bypass and read privileges from the Local File System (LFS).