CVE-2026-9997-VPN-Split-Tunneling-Bypass-via-DHCP-Option-Injection

CVE-2026-9997 – VPN Split‑Tunneling Bypass via DHCP Option Injection Program Code Python simulated DHCP server + client root@kitploit: !/usr/bin/env python3 roguedhcpserver.py - Injects a static route to bypass VPN split tunnel import socket, struct, threading def senddhcpofferclientmac, offerip:...

CLSA-2025-1764322970 NetworkManager: Fix of CVE-2024-3661

CVE-2024-3661: fix TunnelVision vulnerability by preventing DHCP option 121 route manipulation that could bypass VPN encryption and leak traffic...

GHSA-HQMP-G7PH-X543 TunnelVision - decloaking VPNs using DHCP

A new decloaking technique for nearly all VPN implementations has been found, which allows attackers to inject entries into the routing tables of unsuspecting victims using DHCP option 121. This allows attackers to redirect traffic, which is supposed to be sent encrypted over the VPN, through the...

New TunnelVision Attack Allows Hijacking of VPN Traffic via DHCP Manipulation

Researchers have detailed a Virtual Private Network VPN bypass technique dubbed TunnelVision that allows threat actors to snoop on victim's network traffic by just being on the same local network. The "decloaking" method has been assigned the CVE identifier CVE-2024-3661 CVSS score: 7.6. It impac...