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CVE-2026-39312

Pre-Auth EAP-TLS DoS on SoftEther VPN Developer Edition PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
SoftEtherVPN / SoftEtherVPNaffected <= 5.2.5188

CWE

CWE-789

References

ADP enrichment

CISA-ADP

No English description supplied.