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CVE-2025-40539

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CVE-2025-40539

Published: Feb 24, 2026

Modified: Feb 26, 2026

PUBLISHED

CVSS v3.1

9.1

CRITICAL

Description

A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute arbitrary native code as privileged account. 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.

VendorProductVersions

SolarWinds

Serv-U

affected
SolarWinds Serv-U 15.5.3 and prior versions

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

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