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    CVE-2026-93864

    A link following vulnerability in WatchGuard Fireware OS’s firewall daemon allows a local attacker with code execution as a low-privileged system process to overwrite arbitrary files with root privileges, and to tamper with firewall IP set data, by planting a crafted file system object and triggering a list update. Written content is partially constrained.

    Published:Oct 27, 2026
    Last Modified:Oct 29, 2026
    EPS:Oct 27, 2026
    EPSS Score:0.00133
    CVSS Score:7.1

    Affected Products

    Vendor
    Watchguard
    Product
    Fireware Os

    Exploits

    No exploit reference

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    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