CVE-2026-28199

Low

Description

An authenticated user with access to the NetBackup Flex OS management shell could read arbitrary files from the underlying operating system by supplying a specially crafted path argument to a diagnostic command. Successful exploitation could expose sensitive system configuration and credential material stored on the appliance.

SeverityLow

CVSS3.3

Exploit probability—

ProductNetBackup Flex OS

PublishedSep 18, 2026

First seenSep 18, 2026

Weakness typeCWE-347CWE-347

How to fix

Update

Cohesity NetBackup Flex OS6.4 or later

Vendor advisories

github.com/cohesity/SecAdvisory/blob/master/COH-2026-0001.md

Affected products

Product	Affected versions	Fixed in
Cohesity NetBackup Flex OS	v < 6.4	6.4

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