CVE-2019-15720: CloudBerry Backup v6.1.2.34 allows local privilege escalation via a Pre or Post backup action

Q: How do I fix CVE-2019-15720?

backup: upgrade to newer than 6.1.2.34. Exact commands for each OS are on this page.

Q: Is CVE-2019-15720 being exploited?

CVE-2019-15720 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-15720 affect?

CVE-2019-15720 affects backup. Severity is high (CVSS 7.8). 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.

Q: How urgent is CVE-2019-15720?

Priority 41/100. High severity; Public exploit reference

This month

HIGH 7.8UPGRADE

CVE-2019-15720 is a high-severity flaw (CVSS 7.8) affecting backup. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-269
Published	2019-08-28
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cloudberrylab

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-08-28 17:15 UTCPublished CVE record published
2026-06-17 02:20 UTCUpdated Record last modified

cloudberrylab backup UPGRADE

Affected: <= 6.1.2.34

Fixed in: newer than 6.1.2.34

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy backup || rpm -q backup || backup --version

2. UPGRADE to newer than 6.1.2.34 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade backup

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade backup

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-15720?

backup: upgrade to newer than 6.1.2.34. Exact commands for each OS are on this page.

Is CVE-2019-15720 being exploited?

CVE-2019-15720 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-15720 affect?

CVE-2019-15720 affects backup. Severity is high (CVSS 7.8). 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.

How urgent is CVE-2019-15720?

Priority 41/100. High severity; Public exploit reference

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References

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