Serv-U
CVE-2021-35249: Domain Admin Broken Access Control
This broken access control vulnerability pertains specifically to a domain admin who can access configuration & user data of other domains which they should not have access to.
Published
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 and previous versions | 15.3.1 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
This broken access control vulnerability pertains specifically to a domain admin who can access configuration & user data of other domains which they should not have access to. Please note the admin is unable to modify the data (read only operation). This UAC issue leads to a data leak to unauthorized users for a domain, with no log of them accessing the data unless they attempt to modify it. This read-only activity is logged to the original domain and does not specify which domain was accessed.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.