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CVE-2025-8067

8.5 · HIGH

A flaw was found in the Udisks daemon, where it allows unprivileged users to create loop devices using the D-BUS system.

Published Aug 28, 2025CWE-125EPSS 0.68%

Overview

CVE-2025-8067 is a high-severity vulnerability. It was published on August 28, 2025 and has a CVSS 3.1 base score of 8.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

A flaw was found in the Udisks daemon, where it allows unprivileged users to create loop devices using the D-BUS system. This is achieved via the loop device handler, which handles requests sent through the D-BUS interface. As two of the parameters of this handle, it receives the file descriptor list and index specifying the file where the loop device should be backed. The function itself validates the index value to ensure it isn't bigger than the maximum value allowed. However, it fails to validate the lower bound, allowing the index parameter to be a negative value. Under these circumstances, an attacker can cause the UDisks daemon to crash or perform a local privilege escalation by gaining access to files owned by privileged users.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refaccess.redhat.com/errata/RHSA-2025:15017Refaccess.redhat.com/errata/RHSA-2025:15018Refaccess.redhat.com/errata/RHSA-2025:15020Refaccess.redhat.com/errata/RHSA-2025:15956Refaccess.redhat.com/errata/RHSA-2025:16021Refaccess.redhat.com/errata/RHSA-2025:16090Refaccess.redhat.com/errata/RHSA-2025:16106Refaccess.redhat.com/errata/RHSA-2025:16121Refaccess.redhat.com/errata/RHSA-2025:16122Refaccess.redhat.com/errata/RHSA-2025:16125

How CyberStrike helps

Frequently asked questions

What is CVE-2025-8067?

CVE-2025-8067 is a high-severity vulnerability. It was published on August 28, 2025 and has a CVSS 3.1 base score of 8.5 (HIGH).

How severe is CVE-2025-8067?

This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-8067?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-8067?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-8067 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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