Local Denial of Service in OpenVPN on Windows Versions 2.5.0 to 2.7_rc2
CVE-2025-13751

1.3LOW

Key Information:

Vendor

Openvpn
Status
Openvpn
Vendor
CVE Published:
3 December 2025

What is CVE-2025-13751?

The Interactive Service Agent in OpenVPN versions 2.5.0 through 2.7_rc2 on Windows allows a local authenticated user to connect to the service and trigger an error. This exploitation can lead to a local denial of service condition, potentially disrupting network operations and affecting service availability. It is imperative for users of the affected versions to apply the relevant patches and updates to mitigate this risk.

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Affected Version(s)

OpenVPN Windows 2.5.0 <= 2.6.16

OpenVPN Windows 2.7_alpha1 <= 2.7_rc2

References

https://community.openvpn.net/Security%20Announcements/CV...
vendor-advisory
https://www.mail-archive.com/openvpn-announce@lists.sourc...
release-notes
https://www.mail-archive.com/openvpn-announce@lists.sourc...
release-notes

CVSS V4

Score:
1.3
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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