Vulnerability index

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Softethervpn HIGH 7.5
CVE-2026-39312

SoftEtherVPN is a an open-source cross-platform multi-protocol VPN Program. In 5.2.5188 and earlier, a pre-authentication denial-of-service vulnerabi…

Fix: after 5.2.5188
Fix from $1,950 2026-04-07
Vpn CRITICAL 9.8
CVE-2025-25565

SoftEther VPN 5.02.5187 is vulnerable to Buffer Overflow in the Command.c file via the PtMakeCert and PtMakeCert2048 functions. NOTE: the Supplier di…

No fix yet
Fix from $2,300 2025-03-12
Vpn CRITICAL 9.8
CVE-2025-25567

SoftEther VPN 5.02.5187 is vulnerable to Buffer Overflow in Internat.c via the UniToStrForSingleChars function. NOTE: the Supplier disputes this beca…

No fix yet
Fix from $2,300 2025-03-12
Vpn CRITICAL 9.8
CVE-2025-25568

SoftEtherVPN 5.02.5187 is vulnerable to Use after Free in the Command.c file via the CheckNetworkAcceptThread function. NOTE: the Supplier disputes t…

No fix yet
Fix from $2,300 2025-03-12
Vpn MEDIUM 5.6
CVE-2025-25566

Memory Leak vulnerability in SoftEtherVPN 5.02.5187 allows an attacker to cause a denial of service via the UnixMemoryAlloc function. NOTE: the Suppl…

No fix yet
Fix from $1,600 2025-03-12
Vpn HIGH 8.1
CVE-2023-27395

A heap-based buffer overflow vulnerability exists in the vpnserver WpcParsePacket() functionality of SoftEther VPN 4.41-9782-beta, 5.01.9674 and 5.02…

Patch available
Fix from $1,950 2023-10-12
Vpn HIGH 7.8
CVE-2023-27516

An authentication bypass vulnerability exists in the CiRpcAccepted() functionality of SoftEther VPN 4.41-9782-beta and 5.01.9674. A specially crafted…

Patch available
Fix from $1,950 2023-10-12
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 of specially crafted network …

No fix yet
Fix from $1,950 2023-10-12
Vpn HIGH 7.4
CVE-2023-32634

An authentication bypass vulnerability exists in the CiRpcServerThread() functionality of SoftEther VPN 5.01.9674 and 4.41-9782-beta. An attacker can…

Patch available
Fix from $1,950 2023-10-12
Vpn MEDIUM 5.3
CVE-2023-31192

An information disclosure vulnerability exists in the ClientConnect() functionality of SoftEther VPN 5.01.9674. A specially crafted network packet ca…

Patch available
Fix from $1,600 2023-10-12
Vpn HIGH 7.5
CVE-2023-23581

A denial-of-service vulnerability exists in the vpnserver EnSafeHttpHeaderValueStr functionality of SoftEther VPN 5.01.9674 and 5.02. A specially cra…

No fix yet
Fix from $1,950 2023-10-12
Vpn MEDIUM 5.9
CVE-2023-22325

A denial of service vulnerability exists in the DCRegister DDNS_RPC_MAX_RECV_SIZE functionality of SoftEther VPN 4.41-9782-beta, 5.01.9674 and 5.02. …

Patch available
Fix from $1,600 2023-10-12
Vpn HIGH 7.5
CVE-2023-22308

An integer underflow vulnerability exists in the vpnserver OvsProcessData functionality of SoftEther VPN 5.01.9674 and 5.02. A specially crafted netw…

No fix yet
Fix from $1,950 2023-10-12
See.sys HIGH 7.8
CVE-2019-11868

See.sys, up to version 4.25, in SoftEther VPN Server versions 4.29 or older, allows a user to call an IOCTL specifying any kernel address to which ar…

Fix: after 4.25
Fix from $1,950 2019-07-29