cvedb.io
CVE-2026-39312
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-04-07T17:16:36.920 · Last modified 2026-06-17T10:41:54.127

Summary

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.

Affected products

softether — softethervpn

Does this affect you?

Add your gear to cvedb and we'll alert you only when softether ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.