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CVE-2025-13086

Published: Dec 3, 2025Updated: Jan 30, 2026 Sources: CVE List NVD BDUCWE-940
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.6%
Top 55.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-940

Affected Products

openvpnopenvpn
On-premSecurity Product
Networking Infrastructure
OpenVPNOpenVPN
On-premSecurity Product
Networking Infrastructure
АЛЬТ СП 10АО «ИВК»
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
OpenVPNOpenVPN, Inc.
Mixed
Security Products / secure-gateway-vpn
openvpnoss-projectUSNetworking Infrastructureaka openvpn access server, connect
ао «ивк»commercialRUOperating Systemsaka ivk
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
openvpn, inc.commercialUSSecurity Productsaka openvpn connect, easy-rsa, openvpn 3 linux
and 2 more affected products View all →

Exploitability

Official Patch Available

References

https://community.openvpn.net/Security%20Announcements/CVE-2025-13086
community.openvpn.net
https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00151.html
mail-archive.com
https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00152.html
mail-archive.com
and 8 more references View all →

Timeline

Published
Dec 3, 2025
Last Updated
Jan 30, 2026

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