CVE-2026-28197: CWE-88 Improper neutralization of argument delimiters in a command ('argument injection') in Cohesity NetBackup Flex OS
CVE-2026-28197 is a critical vulnerability in Cohesity NetBackup Flex OS that allows an authenticated, low-privileged user with access to the management shell to execute arbitrary code with root-level permissions by supplying specially crafted input to a privileged administrative command. This results in full compromise of the Flex appliance host and all hosted containers, affecting confidentiality, integrity, and availability.
AI Analysis
Technical Summary
This vulnerability (CWE-88) involves improper neutralization of argument delimiters in a command within Cohesity NetBackup Flex OS. An authenticated user with low privileges who can access the management shell can exploit this flaw by providing crafted input to a privileged administrative command, leading to arbitrary code execution with root privileges. This grants the attacker unrestricted control over the Flex appliance and all containers it hosts.
Potential Impact
Successful exploitation grants root-level code execution on the Flex appliance host, resulting in complete compromise of the system and all hosted containers. This affects confidentiality, integrity, and availability of the affected environment.
Mitigation Recommendations
No patch or remediation details are provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-28197: CWE-88 Improper neutralization of argument delimiters in a command ('argument injection') in Cohesity NetBackup Flex OS
Description
CVE-2026-28197 is a critical vulnerability in Cohesity NetBackup Flex OS that allows an authenticated, low-privileged user with access to the management shell to execute arbitrary code with root-level permissions by supplying specially crafted input to a privileged administrative command. This results in full compromise of the Flex appliance host and all hosted containers, affecting confidentiality, integrity, and availability.
CVSS v4.0
Score 9.4critical
Affected software
Cohesity
NetBackup Flex OS
pkg:github/cohesity/NetBackup-Flex-OSRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-88) involves improper neutralization of argument delimiters in a command within Cohesity NetBackup Flex OS. An authenticated user with low privileges who can access the management shell can exploit this flaw by providing crafted input to a privileged administrative command, leading to arbitrary code execution with root privileges. This grants the attacker unrestricted control over the Flex appliance and all containers it hosts.
Potential Impact
Successful exploitation grants root-level code execution on the Flex appliance host, resulting in complete compromise of the system and all hosted containers. This affects confidentiality, integrity, and availability of the affected environment.
Mitigation Recommendations
No patch or remediation details are provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ENISA
- Date Reserved
- 2026-02-25T14:02:29.492Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aadb77255bf5e2cf59e6420
Added to database: 09/18/2026, 22:13:06 UTC
Last enriched: 09/18/2026, 22:15:39 UTC
Last updated: 09/19/2026, 00:03:45 UTC
Views: 5
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