CVE-2026-40225
systemd: udev in systemd: Privilege escalation via malicious hardware devices and unsanitized kernel output
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 11, 2026
Updated · September 1, 2026
Description
A flaw was found in udev in systemd. A local user with access to malicious hardware devices can exploit this vulnerability. By providing unsanitized kernel output, the flaw allows for local root execution, leading to privilege escalation.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 6.4CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-250 · Execution with Unnecessary Privileges