VULNERABILITY INTELLIGENCE

CVE-2025-66171

CVSS score6.5 MEDIUM
EPSS probability0.53%
CISA KEVNot currently listed
Published2026-05-08
Last modified2026-10-07
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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.

Weakness classification

  • security@apache.org: CWE-359

Primary references