Critical severity · published Nov 18, 2025
CVE-2025-40548
A missing validation process exists in Serv U when abused, could give a malicious actor with access to admin privileges the ability to execute code
9.1
CVSS
0.8%
EPSS
No
On KEV
Description
A missing validation process exists in Serv U when abused, could give a malicious actor with access to admin privileges the ability to execute code. 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
Serv-U · SolarWinds
before 15.5.3 · source: NVD
Affected product
SE
Serv-U
SolarWinds
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CVE-2024-28995
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CVE-2021-35247
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9.8
CVE-2020-35481
SolarWinds Serv-U before 15.2.2 allows Unauthenticated Macro Injection