CVE-2025-23019

5.4 MEDIUM
Published: January 14, 2025 Modified: November 03, 2025
View on NVD

Description

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

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://datatracker.ietf.org/doc/html/rfc4213
Source: cve@mitre.org
Technical Description
https://papers.mathyvanhoef.com/usenix2025-tunnels.pdf
Source: cve@mitre.org
Technical Description
https://www.top10vpn.com/research/tunneling-protocol-vulnerability/
Source: cve@mitre.org
Technical Description
https://www.kb.cert.org/vuls/id/199397
Source: af854a3a-2127-422b-91ae-364da2661108

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.4 / 10.0
EPSS (Exploit Probability)
0.1%
28th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-940

Affected Vendors

ietf

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