WPA3 Handshake Flaw Lets Attackers Sniff Wi‑Fi Traffic

Security researchers have uncovered a new attack that subverts the WPA3 Simultaneous Authentication of Equals (SAE) handshake. By injecting crafted messages during the four‑way exchange, the exploit forces the access point to reveal enough information for an adversary to compute the session key and decrypt subsequent traffic. The vulnerability has been reproduced on several widely‑deployed AP models from major vendors, and it works against both personal and enterprise WPA3 networks.

Defenders must treat this as an urgent priority. Until patches are applied, any device that connects to an affected AP can have its traffic intercepted, exposing credentials, corporate data, and internal communications. Immediate actions include deploying vendor updates, enforcing temporary fallback to WPA2 with strong passwords where feasible, and increasing monitoring for anomalous handshake patterns. Network segmentation and the use of additional encryption layers can further mitigate the risk while patches are rolled out.

Categories: Vulnerabilities & Exploits

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