# CVE-2026-28197

Authenticated low-priv user can gain root RCE on NetBackup Flex appliances.

- Page: https://www.vulneraibility.com/cve/CVE-2026-28197
- CVSS: 9.4
- Known exploited: not in CISA KEV as of our last sync
- EPSS: 0.67% (percentile 52.0)
- CISA SSVC: exploitation none, automatable no, technical impact total (assessed 2026-09-18)
- Weakness: CWE-88
- Published: 2026-09-18

## Affected versions

- Cohesity NetBackup Flex OS: affected < 6.4

A version outside these ranges is not a statement that it is unaffected.

## Impact

Authenticated low-privileged user can execute arbitrary code as root on Flex host and containers, enabling full system, backup and data compromise.

## Action

Immediate action required

## Recommendation

Isolate appliances, restrict shell access, collect logs, apply vendor patch when released.

## References

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

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.