CVE-2025-66171mediumCWE-359

CVE-2025-66171: medium-severity vulnerability in Apache CloudStack

Apache CloudStack: Any user can create a new VM from backups they should not have access to

Published · Updated

Follow this CVE+ Monitor Apache CloudStack

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.5epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected products
Apache Software Foundation · Apache CloudStack
Related CVEs — Apache CloudStack

In the same product, most dangerous first.

CVE-2024-41107HIGHApache CloudStack: SAML Signature ExclusionEPSS 17.8%CVE-2022-35741—Apache CloudStack SAML Single Sign-On XXEEPSS 8.0%CVE-2016-6813—CVE-2016-6813EPSS 5.6%CVE-2024-38346CRITICALApache CloudStack: Unauthenticated cluster service port leads to remote executionEPSS 3.3%CVE-2026-61400HIGHApache CloudStack: Get and Run Diagnostics Command InjectionEPSS 2.9%CVE-2022-26779—Apache Cloudstack insecure random number generation affects project email invitationEPSS 2.9%