Search/CVE-2025-40539
● CVE — Critical

CVE-2025-40539

VendorsolarwindsProductserv-uDiscoveredFeb 24, 2026UpdatedFeb 24, 2026

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.

CVSS v3.1
9.1 CRITICAL
EPSS
0.48%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Oct 23, 2026
▲ 0.03pp
0.45% → 0.48% over 4 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredHIGH
User InteractionNONE
ScopeCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Connections
2 relationships
Timeline
disclosure → media coverage
Feb 24, 2026
Disclosure — published as a CVE record.