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    CVE-2025-40798

    A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SIMATIC PCS neo V6.0 (All versions < V6.0 SP1 Update 1), User Management Component (UMC) (All versions < V2.15.1.3). Affected products contain a out-of-bounds read vulnerability in the integrated UMC component. This could allow an unauthenticated remote attacker to cause a denial of service condition.

    Published:Sep 9, 2025
    Last Modified:Jun 9, 2026
    EPS:Sep 9, 2025
    EPSS Score:0.00154
    CVSS Score:7.5

    Affected Products

    Vendor
    Siemens
    Product
    Simatic
    Vendor
    Siemens
    Product
    Simatic Pcs Neo
    Vendor
    Siemens
    Product
    User Management Component

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

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    CVE-2025-40804 (CVSS 9.3) — A vulnerability has been identified in SIMATIC Virtualization as a Service (SIVaaS) (All versions). The affect…
    CVE-2025-40797 (CVSS 8.7) — A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions…
    CVE-2025-40796 (CVSS 8.7) — A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions…
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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