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    CVE-2026-19317

    An out-of-bounds read vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.

    Published:Aug 27, 2026
    Last Modified:Aug 28, 2026
    EPS:Aug 27, 2026
    EPSS Score:0.00322
    CVSS Score:8.7

    Affected Products

    Vendor
    Watchguard
    Product
    Fireware Os

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

    CVE-2026-19315 (CVSS 9.3) — A type confusion vulnerability in the iked process of WatchGuard Fireware OS allows a remote unauthenticated a…
    CVE-2026-19314 (CVSS 8.7) — An integer underflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated …
    CVE-2026-78011 (CVSS 8.7) — An integer underflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated …
    CVE-2026-78010 (CVSS 8.7) — A stack-based buffer overflow vulnerability in the WatchGuard Fireware OS iked process iallows a remote unauth…
    CVE-2026-13086 (CVSS 9.3) — A stack-based buffer overflow in the epm (Endpoint Protection Manager) service used by the deprecated Mobile S…
    CVE-2026-19313 (CVSS 9.3) — An heap overflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated atta…
    CVE-2026-19316 (CVSS 8.7) — A double-free vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacke…
    CVE-2026-78009 (CVSS 8.7) — An out-of-bounds read vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated…
    CVE-2026-19318 (CVSS 9.3) — A stack-based buffer overflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthe…
    CVE-2026-78008 (CVSS 8.6) — A buffer overflow vulnerability in the WatchGuard Fireware OS Management Web UI allows an authenticated admini…

    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