CVE-2025-8067

HIGH EPSS 46.5%
Published Aug 28, 202510mo ago · Modified Jun 17, 20261w ago
8.5 CVSS 3.1
High
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Published Aug 28, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
8.5
Exploitability
2.5
Impact
5.3
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality Low
Integrity Low
Availability High

Threat Intelligence

EPSS Exploit Probability
46.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

References 15

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.