What is CVE-2019-15720?

CVE-2019-15720 is a high-severity vulnerability in Cloudberrylab Backup, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2019-08-28.

How severe is CVE-2019-15720?

High severity. CVSS v3 base score is 7.8 out of 10.

Privilege escalation in Cloudberrylab Backup

CVE-2019-15720

CloudBerry Backup v6.1.2.34 allows local privilege escalation via a Pre or Post backup action. With only user-level access, a user can modify the backup plan and add a Pre backup action script that executes on behalf of NT AUTHORITY\SYSTEM.

Vulnerability class: Privilege Escalation

Published 2019-08-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (33.5th percentile), scored 2026-10-06.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Cloudberrylab Backup

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

www.sevenlayers.com/index.php/243-cloudberry-backup-local-privilege-escalation (Exploit, Third Party Advisory, Mitigation)

Frequently asked questions

What is CVE-2019-15720?: CVE-2019-15720 is a high-severity vulnerability in Cloudberrylab Backup, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2019-08-28.
How severe is CVE-2019-15720?: High severity. CVSS v3 base score is 7.8 out of 10.