Description

SoftEtherVPN is a an open-source cross-platform multi-protocol VPN Program. In 5.2.5188 and earlier, a pre-authentication denial-of-service vulnerability exists in SoftEther VPN Developer Edition 5.2.5188 (and likely earlier versions of Developer Edition). An unauthenticated remote attacker can crash the vpnserver process by sending a single malformed EAP-TLS packet over raw L2TP (UDP/1701), terminating all active VPN sessions.

INFO

Published Date :

2026-04-07T16:52:08.172Z

Last Modified :

2026-04-07T17:27:16.498Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-39312 vulnerability.

Vendors Products
Softethervpn
  • Softethervpn
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-39312.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact