CVE-2022-3787

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-03-29 · updated 2026-06-17
Weakness: CWE-285

Description

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

RedHat Device-Mapper-Multipath: all versions
Red Hat Enterprise Linux: 8.7, 9.1

References

https://bugzilla.redhat.com/show_bug.cgi?id=2138959
https://bugzilla.redhat.com/show_bug.cgi?id=2138959

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