The most recent update includes an important security patch.
Users of the popular WhatsApp messaging service need to update their iPhones and Macsapps to install an important security patch. In a security advisory document, WhatsApp provides details of a vulnerability in WhatsApp for iOS, WhatsApp Business for iOS, and WhatsApp for Mac that could allow a threat agent “to trigger processing of content from an arbitrary URL on a target’s device.”
Documented as CVE-2025-55177 in the National Vulnerability Database, the vulnerability may have been exploited in combination with another security flaw in iOS and macOS, CVE-2025-43300.