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    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 disputes this because the behavior only allows a user to attack himself by typing a long string on a command line.

    Published:Mar 12, 2025
    Last Modified:Jul 19, 2025
    EPS:Mar 12, 2025
    EPSS Score:0.00091
    CVSS Score:9.8

    Affected Products

    Vendor
    Softether
    Product
    Vpn

    Exploits

    https://lzydry.github.io/CVE-2025-25565/https://lzydry.github.io/CVE-2025-25565/

    Related CVEs

    CVE-2025-25566 (CVSS 5.6) — Memory Leak vulnerability in SoftEtherVPN 5.02.5187 allows an attacker to cause a denial of service via the Un…
    CVE-2025-25567 (CVSS 9.8) — SoftEther VPN 5.02.5187 is vulnerable to Buffer Overflow in Internat.c via the UniToStrForSingleChars function…
    CVE-2025-25568 (CVSS 9.8) — SoftEtherVPN 5.02.5187 is vulnerable to Use after Free in the Command.c file via the CheckNetworkAcceptThread …
    CVE-2023-27395 (CVSS 9) — A heap-based buffer overflow vulnerability exists in the vpnserver WpcParsePacket() functionality of SoftEther…
    CVE-2023-22325 (CVSS 5.9) — A denial of service vulnerability exists in the DCRegister DDNS_RPC_MAX_RECV_SIZE functionality of SoftEther V…
    CVE-2023-22308 (CVSS 7.5) — An integer underflow vulnerability exists in the vpnserver OvsProcessData functionality of SoftEther VPN 5.01.…
    CVE-2023-23581 (CVSS 7.5) — A denial-of-service vulnerability exists in the vpnserver EnSafeHttpHeaderValueStr functionality of SoftEther …
    CVE-2023-25774 (CVSS 7.5) — A denial-of-service vulnerability exists in the vpnserver ConnectionAccept() functionality of SoftEther VPN 5.…
    CVE-2023-32275 (CVSS 5.5) — An information disclosure vulnerability exists in the CtEnumCa() functionality of SoftEther VPN 4.41-9782-beta…
    CVE-2023-27516 (CVSS 7.3) — An authentication bypass vulnerability exists in the CiRpcAccepted() functionality of SoftEther VPN 4.41-9782-…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High