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CVE-2026-28197

8.8 · HIGH

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 ar…

Published Sep 18, 2026CWE-88EPSS 0.67%

Overview

CVE-2026-28197 is a high-severity vulnerability. It was published on September 18, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/cohesity/SecAdvisory/blob/master/COH-2026-0001.mdRefwww.cvcn.gov.it/cvcn/cve/CVE-2026-28197

How CyberStrike helps

Frequently asked questions

What is CVE-2026-28197?

CVE-2026-28197 is a high-severity vulnerability. It was published on September 18, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-28197?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-28197?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-28197?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-28197 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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