Is CVE-2025-23018 in the CISA KEV catalog?

No. CVE-2025-23018 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-23018?

CVE-2025-23018 has a CVSS v3 base score of 5.4 (MEDIUM).

What is the EPSS score for CVE-2025-23018?

CVE-2025-23018 has an EPSS score of 1.03% (60th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2025-23018?

No published fix for CVE-2025-23018 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2025-23018

MEDIUM

5.4

CVSS v3

NVD

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.

CWE-940

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Exploit Intelligence

1.03%probability of exploitation in 30 days

60thpercentile

Moderate risk: more likely to be exploited than 60% of all known CVEs.

References

Technical Description3

Other references1

kb.cert.org

Related Vulnerabilities

Other CWE-940 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-61932	Critical	9.8	2.6%	KEV	-
CVE-2024-32388	Medium	5.3	1.5%	-	Fix
CVE-2023-3663	High	8.8	1.0%	-	Fix
CVE-2023-48387	High	8.8	1.0%	-	-
CVE-2025-23019	Medium	5.4	0.9%	-	-
CVE-2021-41038	Medium	6.1	0.7%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.