WhatsApp vulnerability allowed hackers to monitor voice calls via spyware

A vulnerability in the messaging app WhatsApp let attackers install spyware on the users’ phone, reported BBC News. It remains unknown how many WhatsApp users were affected. The Facebook-owned company discovered the vulnerability and issued a security advisory earlier this week, asking its users to update the app.

“A buffer overflow vulnerability in WhatsApp VOIP stack allowed remote code execution via specially crafted series of SRTCP packets sent to a target phone number,” WhatsApp said. The company has rolled out a fix, though it is unclear how many users were affected. WhatsApp said in a statement to BBC that the attack targeted a “select number” of users.