CVE-2026-28199: CWE-347 Improper verification of cryptographic signature in Cohesity NetBackup Flex OS
An authenticated user with access to the NetBackup Flex OS management shell could read arbitrary files from the underlying operating system by supplying a specially crafted path argument to a diagnostic command. Successful exploitation could expose sensitive system configuration and credential material stored on the appliance.
CVE-2026-28199: CWE-347 Improper verification of cryptographic signature in Cohesity NetBackup Flex OS
Description
An authenticated user with access to the NetBackup Flex OS management shell could read arbitrary files from the underlying operating system by supplying a specially crafted path argument to a diagnostic command. Successful exploitation could expose sensitive system configuration and credential material stored on the appliance.
CVSS v4.0
Score 4.8medium
Affected software
Cohesity
NetBackup Flex OS
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ENISA
- Date Reserved
- 2026-02-25T14:02:29.493Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aad214355bf5e2cf5f0f2ff
Added to database: 09/18/2026, 11:32:19 UTC
Last updated: 09/18/2026, 11:32:19 UTC
Views: 1
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.