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Vulnerability record · CVE-2026-28197 · published 18 September 2026

CVE-2026-28197: Argument injection vulnerability

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.

9.4 CVSS 4.0 Critical EPSS 0.67% · top 50.2% CWE-88 · Argument injection Deferred
9.4CVSS 4.0 base score
0.67%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
18 Sep 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/cohesity/SecAdvisory/blob/master/COH-2026-0001.md
https://www.cvcn.gov.it/cvcn/cve/CVE-2026-28197

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Source: NIST National Vulnerability Database (record CVE-2026-28197), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.