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Vulnerability Details :

CVE-2025-23018

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-14 Jan, 2025 | 00:00
Updated At-03 Nov, 2025 | 21:00
Rejected At-
Credits

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:14 Jan, 2025 | 00:00
Updated At:03 Nov, 2025 | 21:00
Rejected At:
▼CVE Numbering Authority (CNA)

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.

Affected Products
Vendor
The IETF Administration LLC (IETF LLC)IETF
Product
IPv6
Default Status
unknown
Versions
Affected
  • 6 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-940CWE-940 Improper Verification of Source of a Communication Channel
Type: CWE
CWE ID: CWE-940
Description: CWE-940 Improper Verification of Source of a Communication Channel
Metrics
VersionBase scoreBase severityVector
3.15.4MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Version: 3.1
Base score: 5.4
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://datatracker.ietf.org/doc/html/rfc2473
N/A
https://papers.mathyvanhoef.com/usenix2025-tunnels.pdf
N/A
https://www.top10vpn.com/research/tunneling-protocol-vulnerability/
N/A
Hyperlink: https://datatracker.ietf.org/doc/html/rfc2473
Resource: N/A
Hyperlink: https://papers.mathyvanhoef.com/usenix2025-tunnels.pdf
Resource: N/A
Hyperlink: https://www.top10vpn.com/research/tunneling-protocol-vulnerability/
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
2. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.kb.cert.org/vuls/id/199397
N/A
Hyperlink: https://www.kb.cert.org/vuls/id/199397
Resource: N/A
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:14 Jan, 2025 | 20:15
Updated At:03 Nov, 2025 | 21:19

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.4MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Primary3.16.5MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Type: Secondary
Version: 3.1
Base score: 5.4
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Type: Primary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
CPE Matches
The IETF Administration LLC (IETF LLC)
ietf
>>ipv6>>-
cpe:2.3:a:ietf:ipv6:-:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-940Secondarycve@mitre.org
NVD-CWE-OtherPrimarynvd@nist.gov
CWE ID: CWE-940
Type: Secondary
Source: cve@mitre.org
CWE ID: NVD-CWE-Other
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://datatracker.ietf.org/doc/html/rfc2473cve@mitre.org
Technical Description
https://papers.mathyvanhoef.com/usenix2025-tunnels.pdfcve@mitre.org
Technical Description
https://www.top10vpn.com/research/tunneling-protocol-vulnerability/cve@mitre.org
Technical Description
https://www.kb.cert.org/vuls/id/199397af854a3a-2127-422b-91ae-364da2661108
N/A
Hyperlink: https://datatracker.ietf.org/doc/html/rfc2473
Source: cve@mitre.org
Resource:
Technical Description
Hyperlink: https://papers.mathyvanhoef.com/usenix2025-tunnels.pdf
Source: cve@mitre.org
Resource:
Technical Description
Hyperlink: https://www.top10vpn.com/research/tunneling-protocol-vulnerability/
Source: cve@mitre.org
Resource:
Technical Description
Hyperlink: https://www.kb.cert.org/vuls/id/199397
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A

Change History

0
Information is not available yet

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3Records found
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||
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Updated-03 Nov, 2025 | 21:18
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GRE and GRE6 Protocols (RFC2784) do not validate or verify the source of a network packet allowing an attacker to spoof and route arbitrary traffic via an exposed network interface that can lead to spoofing, access control bypass, and other unexpected network behaviors. This can be considered similar to CVE-2020-10136.

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Details not found