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    CVE-2025-40538

    A broken access control vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to create a system admin user and execute arbitrary code as a privileged account via domain admin or group admin privileges. This issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default.

    Published:Feb 24, 2026
    Last Modified:Feb 26, 2026
    EPS:Feb 24, 2026
    EPSS Score:0.00029
    CVSS Score:9.1

    Affected Products

    Vendor
    Solarwinds
    Product
    Serv-u

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-269 Improper Privilege Management

    Related CVEs

    CVE-2026-28321 (CVSS 9.1) — SolarWinds Serv-U is affected by a broken access control vulnerability that could allow arbitrary file read an…
    CVE-2026-28317 (CVSS 9.1) — SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that can lead to pri…
    CVE-2026-28316 (CVSS 9.1) — SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that can lead to pri…
    CVE-2026-28315 (CVSS 6.2) — SolarWinds Serv-U was found to be affected by a stored cross-site scripting vulnerability that could lead to s…
    CVE-2026-28314 (CVSS 9.1) — SolarWinds Serv-U is affected by an insecure direct object reference vulnerability that leads to an account ta…
    CVE-2026-28313 (CVSS 9.1) — SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that can lead to SMT…
    CVE-2026-28312 (CVSS 9.1) — SolarWinds Serv-U is affected by a privilege escalation vulnerability. This would elevate a group’s access to …
    CVE-2026-28310 (CVSS 9.1) — SolarWinds Serv-U is affected by a privilege escalation vulnerability that allows a domain administrator to es…
    CVE-2026-28309 (CVSS 9.1) — SolarWinds Serv-U is affected by a broken access control vulnerability that allows a domain administrator to c…
    CVE-2026-28308 (CVSS 9.1) — SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that can lead to rem…

    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