Ref# ADV2025_308 | Date: Sep 4th 2025

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WhatsApp has published a security advisory highlighting vulnerabilities in the following products on August 29th, 2025. It is recommended that you take the necessary precautions by ensuring your products are always updated. 

• WhatsApp for IoS – versions prior to v2.25.21.73  
• WhatsApp Business for IoS – versions prior to v2.25.21.78  
• WhatsApp for MAC – versions prior to v2.25.21.78 

For more information on these updates, you can follow this URL: 

WhatsApp Security Advisories 

The Guyana National CIRT recommends that users and administrators review these updates and apply them where necessary. 

PDF Download: WhatsApp Security Advisory

References 

• WhatsApp Security Advisories. (August 29th, 2025). Retrieved from WhatsApp. https://www.whatsapp.com/security/advisories/2025/  

• WhatsApp Security Advisory. (September 2nd, 2025). Retrieved from Canadian Centre for Cyber Security. https://www.cyber.gc.ca/en/alerts-advisories/whatsapp-security-advisory-av25-559