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Status published
Medium
CVE-2025-23018
IPv4-in-IPv6 and IPv6-in-IPv6 tunneling (RFC 2473) do not require the...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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6.9
CVE-2025-23019
IPv6-in-IPv4 tunneling (RFC 4213) allows an attacker to spoof and...
Medium
5.4
CVE-2024-7596
Generic UDP Encapsulation (GUE) (IETF Draft) do not validate or verify the source of a network packet
Unknown
0
CVE-2024-7595
GRE and GRE6 Protocols (RFC2784) do not validate or verify the source of a network packet
Unknown
0
CVE-2024-3661
DHCP routing options can manipulate interface-based VPN traffic
High
7.6
Affected Vendor
IETF
View all reports →Affected Software
IPv6
Vulnerable Versions:
6
Timeline
Official Publish:
January 14th, 2025
Last Modified:
November 3rd, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.