CVE-2025-23018
low-risk
Published 2025-01-14
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.
Do I need to act?
-
0.06% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.4/10
Medium
NETWORK
/ HIGH complexity
Affected Products (1)
Ipv6
Affected Vendors
References (4)
Technical Description
https://datatracker.ietf.org/doc/html/rfc2473
Technical Description
https://papers.mathyvanhoef.com/usenix2025-tunnels.pdf
Technical Description
https://www.top10vpn.com/research/tunneling-protocol-vulnerability/
22
/ 100
low-risk
Severity
17/34 · Moderate
Exploitability
0/34 · Minimal
Exposure
5/34 · Minimal