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New Attack on VPNs

ID: 1392a977-f4aa-5804-8627-8767d70e2d28

STIX ID: report--1392a977-f4aa-5804-8627-8767d70e2d28

Feed Name: Schneier on Security

Threat Score
70/100

Date Published: 2024-05-07

Date Updated: 2026-04-19

Author: Bruce Schneier

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Researchers disclosed "TunnelVision", an attack that manipulates DHCP option 121 on hostile networks to override routing and divert VPN traffic outside the encrypted tunnel, potentially affecting nearly all VPN applications (with Linux and Android as exceptions) and possibly feasible since 2002.

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