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    CVE-2026-13046

    A deserialization of untrusted data vulnerability in WatchGuard Fireware OS's SAML single sign-on session handling (samld) allows an attacker who has already obtained the ability to write files on the appliance to execute arbitrary code in the context of the samld service by causing samld to load a maliciously crafted session file.

    Published:Sep 29, 2026
    Last Modified:Oct 8, 2026
    EPS:Sep 29, 2026
    EPSS Score:0.00324
    CVSS Score:7.2

    Affected Products

    Vendor
    Watchguard
    Product
    Fireware
    Vendor
    Watchguard
    Product
    Fireware Os

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-586 Object Injection

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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