- Description
- The CloudStack Backup plugin has an improper access logic in versions 4.21.0.0 and 4.22.0.0. Anyone with authenticated user-account access in CloudStack 4.21.0.0+ environments, where this plugin is enabled and have access to specific APIs can create new VMs using backups of any other user of the environment. Backup plugin users using CloudStack 4.21.0.0+ are recommended to upgrade to CloudStack version 4.22.0.1, which fixes this issue.
- Source
- security@apache.org
- NVD status
- Analyzed
- Products
- cloudstack
CVSS 3.1
- Type
- Secondary
- Base score
- 6.5
- Impact score
- 3.6
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Severity
- MEDIUM
- security@apache.org
- CWE-359
- Hype score
- Not currently trending
CVE-2025-66171 The CloudStack Backup plugin has an improper access logic in versions 4.21.0.0 and 4.22.0.0. Anyone with authenticated user-account access in CloudStack 4.21.0.0+ env… https://t.co/5OjQB8AuM4
@CVEnew
9 May 2026
321 Impressions
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CVE-2025-66171 Improper Access Logic in CloudStack Backup Plugin Versions 4.21.0.0 and 4.22.0.0 https://t.co/iTRvLpwjwQ
@VulmonFeeds
8 May 2026
172 Impressions
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