OpenVPN up to 2.7_rc1 Source IP Address verification of source

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in OpenVPN up to 2.7_rc1. The affected element is an unknown function of the component Source IP Address Handler. Such manipulation leads to verification of source. This vulnerability is listed as CVE-2025-13086. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in OpenVPN up to 2.7_rc1. Affected by this issue is an unknown function of the component Source IP Address Handler. The manipulation with an unknown input leads to a verification of source vulnerability. Using CWE to declare the problem leads to CWE-940. The product establishes a communication channel to handle an incoming request that has been initiated by an actor, but it does not properly verify that the request is coming from the expected origin. Impacted is availability. CVE summarizes:

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

The advisory is shared for download at community.openvpn.net. This vulnerability is handled as CVE-2025-13086 since 11/12/2025. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 277384 (Debian dsa-6069 : openvpn - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.6.16 or 2.7_rc2 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (277384), EUVD (EUVD-2025-201102) and CERT Bund (WID-SEC-2026-0413). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Securepoint UTM

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Verification of source
CWE: CWE-940
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 277384
Nessus Name: Debian dsa-6069 : openvpn - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: OpenVPN 2.6.16/2.7_rc2

Timelineinfo

11/12/2025 CVE reserved
12/03/2025 +21 days Advisory disclosed
12/03/2025 +0 days VulDB entry created
02/13/2026 +72 days VulDB entry last update

Sourcesinfo

Advisory: community.openvpn.net
Status: Confirmed

CVE: CVE-2025-13086 (🔒)
GCVE (CVE): GCVE-0-2025-13086
GCVE (VulDB): GCVE-100-334208
EUVD: 🔒
CERT Bund: WID-SEC-2026-0413 - Securepoint UTM: Mehrere Schwachstellen

Entryinfo

Created: 12/03/2025 23:40
Updated: 02/13/2026 13:08
Changes: 12/03/2025 23:40 (65), 12/04/2025 12:21 (1), 12/04/2025 12:29 (1), 12/04/2025 15:02 (2), 12/12/2025 15:22 (1), 01/30/2026 19:55 (11), 02/04/2026 14:57 (2), 02/04/2026 15:00 (5), 02/13/2026 13:08 (8)
Complete: 🔍
Committer: lywand
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

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