CVE-2025-40540

CRITICAL

SolarWinds Serv-U < 15.5.4 - Authenticated Remote Code Execution via Type Confusion

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 9.1
EPSS 0.0044
EPSS Percentile 35.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-704
Status published
Products (1)
solarwinds/serv-u < 15.5.4
Published Feb 24, 2026
Tracked Since Feb 24, 2026