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    CVE-2026-66151

    SonicWall Global VPN Client version 4.10.8.1108 and earlier is vulnerable to an out-of-bounds kernel memory read in the SWIPsec.sys driver, which could allow a local attacker to cause a system crash.

    Published:Aug 7, 2026
    Last Modified:Aug 13, 2026
    EPS:Aug 7, 2026
    EPSS Score:0.0011
    CVSS Score:5.5

    Affected Products

    Vendor
    Sonicwall
    Product
    Global Vpn Client

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

    CVE-2021-20051 (CVSS 7.8) — SonicWall Global VPN Client 4.10.7.1117 installer (32-bit and 64-bit) and earlier versions have a DLL Search O…
    CVE-2021-20047 (CVSS 7.8) — SonicWall Global VPN client version 4.10.6 (32-bit and 64-bit) and earlier have a DLL Search Order Hijacking v…
    CVE-2021-20037 (CVSS 7.8) — SonicWall Global VPN Client 4.10.5 installer (32-bit and 64-bit) incorrect default file permission vulnerabili…
    CVE-2020-5145 (CVSS 8.6) — SonicWall Global VPN client version 4.10.4.0314 and earlier have an insecure library loading (DLL hijacking) v…
    CVE-2020-5144 (CVSS 7.8) — SonicWall Global VPN client version 4.10.4.0314 and earlier allows unprivileged windows user to elevate privil…
    CVE-2007-6273 (CVSS 9.3) — Multiple format string vulnerabilities in the configuration file in SonicWALL GLobal VPN Client 3.1.556 and 4.…

    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