An authenticated, low-privileged user with access to the NetBackup Flex
OS management shell could supply a specially crafted input to a
privileged administrative command, causing it to execute arbitrary code
with root-level permissions. Successful exploitation grants the attacker
unrestricted control over the Flex appliance host and all hosted
containers, fully compromising confidentiality, integrity, and
availability.

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Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

Restrict management shell access to authorized administrators only. No compensating control fully eliminates the risk; upgrading is required.

History

Sun, 20 Sep 2026 03:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sat, 19 Sep 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Cohesity
Cohesity netbackup Flex Os
Vendors & Products Cohesity
Cohesity netbackup Flex Os

Fri, 18 Sep 2026 11:15:00 +0000

Type Values Removed Values Added
Description An authenticated, low-privileged user with access to the NetBackup Flex OS management shell could supply a specially crafted input to a privileged administrative command, causing it to execute arbitrary code with root-level permissions. Successful exploitation grants the attacker unrestricted control over the Flex appliance host and all hosted containers, fully compromising confidentiality, integrity, and availability.
Title Privilege Escalation via Argument Injection in NetBackup Flex OS Shell
Weaknesses CWE-88
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: ENISA

Published:

Updated: 2026-09-18T14:31:44.840Z

Reserved: 2026-02-25T14:02:29.492Z

Link: CVE-2026-28197

cve-icon Vulnrichment

Updated: 2026-09-18T14:30:09.440Z

cve-icon NVD

Status : Deferred

Published: 2026-09-18T12:17:24.573

Modified: 2026-09-18T19:24:36.593

Link: CVE-2026-28197

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-19T22:29:48Z

Weaknesses