CVE-2026-25077

HIGH EPSS 49.5%
Published May 8, 20261mo ago · Modified Jun 17, 20261w ago
8.8 CVSS 3.1
High
Find Similar
Published May 8, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

Account users are allowed by default to register templates to be downloaded directly to the primary storage for deploying instances using the KVM hypervisor. Due to missing file name sanitization, an attacker can register malicious templates to execute arbitrary code on the KVM hosts. This can result in the compromise of resource integrity and confidentiality, data loss, denial of service, and availability of the KVM-based infrastructure managed by CloudStack. 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 Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
49.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-94 Improper Control of Generation of Code (Code Injection) Injection

Affected Products 2

VendorProductVersionRange
apachecloudstack*≥4.11.0.0  –  <4.20.3.0
apachecloudstack*≥4.21.0.0  –  <4.22.0.1

References 2

  • openwall.com http://www.openwall.com/lists/oss-security/2026/05/09/6
  • lists.apache.org https://lists.apache.org/thread/n8mt5b7wkpysstb8w7rr9f02kc5cq2xm
    Mailing ListVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.