CVE-2025-23019

Description

IPv6-in-IPv4 tunneling (RFC 4213) allows an attacker to spoof and route traffic via an exposed network interface.

Affected Platforms

Weakness Type

CWE-940, NVD-CWE-Other

References

• https://datatracker.ietf.org/doc/html/rfc4213
• https://papers.mathyvanhoef.com/usenix2025-tunnels.pdf
• https://www.top10vpn.com/research/tunneling-protocol-vulnerability/
• https://www.kb.cert.org/vuls/id/199397