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CVE-2025-66467

Apache Cloudstack vulnerability

8.0 HIGHEPSS 0.37%
  1. Published8 May 2026

Description

Missing MinIO policy cleanup on bucket deletion via Apache CloudStack allows users to retain access to buckets which they previously owned. If another user creates a new bucket with the same name, the previous owners can gain unauthorized read and write access to it by using the previously generated access and secret keys. Users are recommended to upgrade to Apache CloudStack versions 4.20.3.0 or 4.22.0.1, or later, which fixes this issue.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredLow
User interactionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Affected products

Apache Cloudstack≥ 4.19.0.0 < 4.20.3.0 · ≥ 4.21.0.0 < 4.22.0.1

Remediation

Fixed in
Apache Cloudstack≥ 4.20.3.0

References

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Frequently asked

Is CVE-2025-66467 being actively exploited?

CVE-2025-66467 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.37%.

How severe is CVE-2025-66467?

CVE-2025-66467 has a CVSS 3.1 base score of 8.0, rated high. EPSS estimates a 0.37% probability of exploitation.

Which products are affected by CVE-2025-66467?

Affected products include Apache Cloudstack.

How do I fix CVE-2025-66467?

Upgrade affected software to a fixed version, for example Apache Cloudstack 4.20.3.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-66467 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.