CVE-2026-28197

Summary

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.

Affected Software

Weaknesses

• CWE-88: CWE-88 Improper neutralization of argument delimiters in a command ('argument injection')

Workarounds

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

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

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

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