What is CVE-2021-35245?

CVE-2021-35245 is a high-severity vulnerability in Microsoft Windows, classified under Improper Access Control. CVSS score: 8.4/10. Published 2021-12-06.

How severe is CVE-2021-35245?

High severity. CVSS v3 base score is 8.4 out of 10.

Vulnerability in Microsoft Windows

CVE-2021-35245

When a user has admin rights in Serv-U Console, the user can move, create and delete any files are able to be accessed on the Serv-U host machine.

Published 2021-12-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Microsoft Windows
Solarwinds Serv-U — versions 15.2.4, 15.2.5
Solarwinds Serv-U FTP — versions 15.2.4 Hotfix 1 and previous versions

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

www.solarwinds.com/trust-center/security-advisories/CVE-2021-35245 (Vendor Advisory)
documentation.solarwinds.com/en/success_center/servu/content/release_notes/serv… (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2021-35245?: CVE-2021-35245 is a high-severity vulnerability in Microsoft Windows, classified under Improper Access Control. CVSS score: 8.4/10. Published 2021-12-06.
How severe is CVE-2021-35245?: High severity. CVSS v3 base score is 8.4 out of 10.