VIR Vulnerability Intelligence Relay

CVE-2025-66171

medium
Published 2026-05-08 · Modified 2026-05-12
CVSS v3
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v2
—
VIR risk
6.5

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.

Predictions

Exploit likelihood
75%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

Application impact
VendorProductVersionsFixed
apache apachecloudstack{"startIncluding":"4.21.0.0","endExcluding":"4.22.0.1"}4.22.0.1

References

CWEs

CWE-359

Verify integrity in audit chain (admin only). AS-IS.