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OpenAdvisories

Vendor

SoftEther VPN

12 known vulnerabilities.

Products

SoftEther VPN 9 SoftEtherVPN 3
All Critical High Medium Low Exploited only Public exploit

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  • High 7.5
    CVE-2026-39312

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

    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…

    SoftEther VPN SoftEtherVPN
  • High 7.5
    CVE-2023-22308

    An integer underflow vulnerability exists in the vpnserver OvsProcessData functionality of SoftEther VPN 5.01.9674 and …

    SoftEther VPN SoftEther VPN
  • High 7.5
    CVE-2023-23581

    A denial-of-service vulnerability exists in the vpnserver EnSafeHttpHeaderValueStr functionality of SoftEther VPN 5.01.…

    SoftEther VPN SoftEther VPN
  • High 7.5
    CVE-2023-25774

    A denial-of-service vulnerability exists in the vpnserver ConnectionAccept() functionality of SoftEther VPN 5.02. A set…

    SoftEther VPN SoftEther VPN
  • High 7.3
    CVE-2023-27516

    An authentication bypass vulnerability exists in the CiRpcAccepted() functionality of SoftEther VPN 4.41-9782-beta and …

    SoftEther VPN SoftEther VPN
  • High 7.8
    CVE-2023-32634

    An authentication bypass vulnerability exists in the CiRpcServerThread() functionality of SoftEther VPN 5.01.9674 and 4…

    SoftEther VPN SoftEther VPN