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Medium · 5.4 CVE-2025-23018 EUVD-2025-3076GHSA-mf23-wm84-g9x3

IPv4-in-IPv6 and IPv6-in-IPv6 tunneling (RFC 2473) do not require the validation or verification of the source of a network packet, allowin…

Published Jan 14, 2025 · Updated Nov 3, 2025 · Assigned by mitre

Description

IPv4-in-IPv6 and IPv6-in-IPv6 tunneling (RFC 2473) do not require the validation or verification of the source of a network packet, allowing an attacker to spoof and route arbitrary traffic via an exposed network interface. This is a similar issue to CVE-2020-10136.

Affected products

VendorProductAffectedFixed
IETF IPv6 6 —

Advisories 1

References