Serv-U
CVE-2021-35250: Directory Transversal Vulnerability in Serv-U 15.3
A researcher reported a Directory Transversal Vulnerability in Serv-U 15.3.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 3.1 7.5
EPSS13%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Serv-U 15.3 only | 15.3 Hotfix 1 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A researcher reported a Directory Transversal Vulnerability in Serv-U 15.3. This may allow access to files relating to the Serv-U installation and server files. This issue has been resolved in Serv-U 15.3 Hotfix 1.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.