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    CVE-2026-18145

    A stack-based buffer overflow vulnerability in the spamBlocker (spamd) service of WatchGuard Fireware OS allows an authenticated attacker with administrator privileges to crash the service or potentially execute arbitrary code by sending a specially crafted management request.

    Published:Sep 29, 2026
    Last Modified:Oct 8, 2026
    EPS:Sep 29, 2026
    EPSS Score:0.00342
    CVSS Score:7.2

    Affected Products

    Vendor
    Watchguard
    Product
    Fireware
    Vendor
    Watchguard
    Product
    Fireware Os

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-121 Stack-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2026-13224 (CVSS 8.2) — A path traversal vulnerability in the Fireware OS WebUI management agent allows an authenticated administrator…
    CVE-2026-86133 (CVSS 8.2) — An integer underflow vulnerability in the WatchGuard Fireware OS IKE daemon (iked) allows a remote attacker wh…
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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