CVE-2020-15851

Name: CVE-2020-15851
Creator: NVD / NIST
Published: 2020-09-24T21:15:15.59+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.54%

Last modified Jun 17, 2026

CVE-2020-15851 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Lack of access control in Nakivo Backup & Replication Transporter version 9.4.0.r43656 allows remote users to access unencrypted backup repositories and the Nakivo Controller configuration via a network accessible transporter service. It is also possible to create or delete backup repositories.. EPSS estimates a 1.54% chance of exploitation in the next 30 days.

Description

Lack of access control in Nakivo Backup & Replication Transporter version 9.4.0.r43656 allows remote users to access unencrypted backup repositories and the Nakivo Controller configuration via a network accessible transporter service. It is also possible to create or delete backup repositories.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.54%

71.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-306

Affected Software

Vendor	Product	Versions
Nakivo	Backup \& Replication Transporter	9.4.0.r43656

References

https://helpcenter.nakivo.com/display/RN/v10.3+Release+NotesRelease Notes, Vendor Advisory
https://labs.f-secure.com/advisories/nakivo-backup-and-replication-multiple-vulnerabilitiesExploit, Third Party Advisory
https://helpcenter.nakivo.com/display/RN/v10.3+Release+NotesRelease Notes, Vendor Advisory
https://labs.f-secure.com/advisories/nakivo-backup-and-replication-multiple-vulnerabilitiesExploit, Third Party Advisory

Timeline

Published: Sep 24, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-15851?

How severe is CVE-2020-15851?

CVE-2020-15851 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.

How do I fix CVE-2020-15851?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-15851?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST