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    CVE-2026-66153

    The NEService auto-upgrade process insecurely handles temporary files in SonicWall NetExtender Linux client which allows an attacker to manipulate file paths.

    Published:Aug 25, 2026
    Last Modified:Aug 26, 2026
    EPS:Aug 25, 2026
    EPSS Score:0.00196
    CVSS Score:7

    Affected Products

    Vendor
    Sonicwall
    Product
    Netextender

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-66152 (CVSS 8.8) — A Path traversal vulnerability in the SonicWall NetExtender Linux client file extractor component allows an at…
    CVE-2025-23010 (CVSS 7.2) — An Improper Link Resolution Before File Access ('Link Following') vulnerability in SonicWall NetExtender Windo…
    CVE-2025-23009 (CVSS 7.2) — A local privilege escalation vulnerability in SonicWall NetExtender Windows (32 and 64 bit) client which allow…
    CVE-2025-23008 (CVSS 7.2) — An improper privilege management vulnerability in the SonicWall NetExtender Windows (32 and 64 bit) client all…
    CVE-2024-29014 (CVSS 8.8) — Vulnerability in SonicWall SMA100 NetExtender Windows (32 and 64-bit) client 10.2.339 and earlier versions all…
    CVE-2023-6340 (CVSS 5.5) — SonicWall Capture Client version 3.7.10, NetExtender client version 10.2.337 and earlier versions are installe…
    CVE-2023-44220 (CVSS 7.3) — SonicWall NetExtender Windows (32-bit and 64-bit) client 10.2.336 and earlier versions have a DLL Search Order…
    CVE-2023-44218 (CVSS 8.8) — A flaw within the SonicWall NetExtender Pre-Logon feature enables an unauthorized user to gain access to the …
    CVE-2023-44217 (CVSS 7.8) — A local privilege escalation vulnerability in SonicWall Net Extender MSI client for Windows 10.2.336 and earl…
    CVE-2022-22281 (CVSS 7.8) — A buffer overflow vulnerability in the SonicWall SSL-VPN NetExtender Windows Client (32 and 64 bit) in 10.2.32…

    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