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    CVE-2026-22925

    A vulnerability has been identified in SIMATIC CN 4100 (All versions < V5.0). The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets This could allow an attacker to render the service unavailable and cause denial-of-service conditions by overwhelming system resources.

    Published:May 12, 2026
    Last Modified:May 12, 2026
    EPS:May 12, 2026
    EPSS Score:0.0004
    CVSS Score:7.5

    Affected Products

    Vendor
    Siemens
    Product
    Simatic Cn 4100

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2025-40941 (CVSS 5.3) — A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected devices exposes s…
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    CVE-2025-40939 (CVSS 5.1) — A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected device contains a…
    CVE-2025-40938 (CVSS 9.2) — A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected device stores sen…
    CVE-2025-40937 (CVSS 8.7) — A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected application do no…
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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