CVE-2025-40540
Received Received - Intake
Type Confusion in Serv-U Allows Privileged Arbitrary Code Execution

Publication date: 2026-02-24

Last updated on: 2026-02-24

Assigner: SolarWinds

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.
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Meta Information
Published
2026-02-24
Last Modified
2026-02-24
Generated
2026-06-16
AI Q&A
2026-02-24
EPSS Evaluated
2026-06-15
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
solarwinds serv-u to 15.5.4 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-704 The product does not correctly convert an object, resource, or structure from one type to a different type.
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Executive Summary

This vulnerability is a type confusion issue in Serv-U software. When exploited, it allows a malicious actor to execute arbitrary native code with privileged account rights.

Exploitation requires administrative privileges, meaning the attacker must already have high-level access to abuse this vulnerability.

On Windows systems, the risk is considered medium because services often run under less-privileged accounts by default, reducing the likelihood of full privilege exploitation.

Impact Analysis

If exploited, this vulnerability can lead to execution of arbitrary code with privileged access, potentially allowing an attacker to take full control of the affected system.

This can result in complete compromise of confidentiality, integrity, and availability of the system and its data.

However, exploitation requires administrative privileges, so the impact depends on the attacker's existing access level.

Compliance Impact

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Detection Guidance

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Mitigation Strategies

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