CVE-2025-23018

MEDIUM5.4

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

Published Jan 14, 2025

Modified 4 months ago

Details

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.

References

WEB

https://datatracker.ietf.org/doc/html/rfc2473

WEB

https://papers.mathyvanhoef.com/usenix2025-tunnels.pdf

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2025-23018

WEB

https://www.kb.cert.org/vuls/id/199397

WEB

https://www.top10vpn.com/research/tunneling-protocol-vulnerability/

CVSS Analysis