Wi-Fi Protected Access (WPA and WPA2) allows reinstallation of the Station-To-Station-Link (STSL) Transient Key (STK) during the PeerKey handshake, allowing an attacker within radio range to replay, decrypt, or spoof frames.
Nonces should be used for the present occasion and only once.
The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.