CVE-2022-3787: Red Hat Device-Mapper-Multipath

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

A vulnerability was found in the device-mapper-multipath. The device-mapper-multipath allows local users to obtain root access, exploited alone or in conjunction with CVE-2022-41973. Local users that are able to write to UNIX domain sockets can bypass access controls and manipulate the multipath setup. This issue occurs because an attacker can repeat a keyword, which is mishandled when arithmetic ADD is used instead of bitwise OR. This could lead to local privilege escalation to root.

Affected products

• Red Hat Device-Mapper-Multipath: affected versions not specified
• Red Hat Enterprise Linux: version 8.7 only; version 9.1 only

Published 2023-03-29. Last modified 2026-06-17.