Is CVE-2025-13086 in the CISA KEV catalog?

No. CVE-2025-13086 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-13086?

CVE-2025-13086 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2025-13086?

CVE-2025-13086 has an EPSS score of 0.62% (46th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-13086?

Upgrade openvpn on debian 12 to 2.6.3-1+deb12u4 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2025-13086

HIGH

7.5

CVSS v3

NVD

Description

Improper validation of source IP addresses in OpenVPN version 2.6.0 through 2.6.15 and 2.7_alpha1 through 2.7_rc1 allows an attacker to open a session from a different IP address which did not initiate the connection resulting in a denial of service for the originating client

CWE-940

How to fix

Remediation Available

openvpnDebian

Fixed in:2.6.3-1+deb12u4CVE-2025-13086

Fixed in:2.6.14-1+deb13u1CVE-2025-13086

Fixed in:2.7.0~rc2-2CVE-2025-13086

openvpnUbuntu

Fixed in:2.6.14-0ubuntu0.24.04.3USN-7898-1

Fixed in:2.6.14-2ubuntu1.1USN-7898-1

OpenVPNWindows application

Affected:2.6.0 2.6.16Fixed in:2.6.16OpenVPN, Inc.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.62%probability of exploitation in 30 days

46thpercentile

Moderate risk: more likely to be exploited than 46% of all known CVEs.

References

Vendor Advisory1

community.openvpn.net

Mailing List2

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-2025-23018	Medium	5.4	1.0%	-	-
CVE-2025-23019	Medium	5.4	0.9%	-	-

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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 2026-01-30.