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CVE-2022-3787

A vulnerability was found in the device-mapper-multipath. The device-mapper-multipath allows...

7.8 HighFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.22%Up 0.2 points since Mar 30, 2023
90%50%10%1%

What each source reports

NVD Score used 7.8

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.

Record
CVE-2022-3787
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-285
Updated
2026-11-02
CVE List 7.8

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.

Record
CVE-2022-3787
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-285
Updated
2026-11-02
EUVDEUVD-2022-43134 7.8

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.

Record
EUVD-2022-43134
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-m46g-8pc6-m8q7 7.8

A vulnerability was found in the device-mapper-multipath. The device-mapper-multipath allows...

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.

Record
GHSA-m46g-8pc6-m8q7
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-285
Updated
2026-11-02
OSVRHSA-2022:7928 8.4

Red Hat Security Advisory: device-mapper-multipath security update

Record
RHSA-2022:7928
CVSS 3.1
8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2022:8453 8.4

Red Hat Security Advisory: device-mapper-multipath security update

Record
RHSA-2022:8453
CVSS 3.1
8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
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OSVRLSA-2022:7928 8.4

Important: device-mapper-multipath security update

The device-mapper-multipath packages provide tools that use the device-mapper multipath kernel module to manage multipath devices.

Security Fix(es):

  • device-mapper-multipath: Regression of CVE-2022-41974 fix in Rocky Linux (CVE-2022-3787)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
RLSA-2022:7928
CVSS 3.1
8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRLSA-2022:8453 8.4

Important: device-mapper-multipath security update

The device-mapper-multipath packages provide tools that use the device-mapper multipath kernel module to manage multipath devices.

Security Fix(es):

  • device-mapper-multipath: Regression of CVE-2022-41974 fix in Rocky Linux (CVE-2022-3787)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
RLSA-2022:8453
CVSS 3.1
8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVALSA-2022:7928 No score

Important: device-mapper-multipath security update

The device-mapper-multipath packages provide tools that use the device-mapper multipath kernel module to manage multipath devices.

Security Fix(es):

  • device-mapper-multipath: Regression of CVE-2022-41974 fix in AlmaLinux (CVE-2022-3787)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
ALSA-2022:7928
Updated
2026-11-02
OSVALSA-2022:8453 No score

Important: device-mapper-multipath security update

The device-mapper-multipath packages provide tools that use the device-mapper multipath kernel module to manage multipath devices.

Security Fix(es):

  • device-mapper-multipath: Regression of CVE-2022-41974 fix in AlmaLinux (CVE-2022-3787)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
ALSA-2022:8453
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
device-mapper-multipath
AlmaLinux:8
From an advisory covering 2 CVEs
before 0.8.4-28.el8_7.1
0.8.4-28.el8_7.1
device-mapper-multipath
AlmaLinux:9
From an advisory covering 2 CVEs
before 0.8.7-12.el9_1.1
0.8.7-12.el9_1.1
device-mapper-multipath
Red Hat:enterprise_linux:8::baseos
before 0:0.8.4-28.el8_7.1
0:0.8.4-28.el8_7.1
device-mapper-multipath
Red Hat:enterprise_linux:9::baseos
before 0:0.8.7-12.el9_1.1
0:0.8.7-12.el9_1.1
device-mapper-multipath
Rocky Linux:8
before 0:0.8.4-28.el8_7.1
0:0.8.4-28.el8_7.1
device-mapper-multipath
Rocky Linux:9
before 0:0.8.7-12.el9_1.1
0:0.8.7-12.el9_1.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-3787 is a high vulnerability (CVSS 7.8) in Microsoft Device-mapper-multipath, published November 14, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.22%, the 12th percentile. Fixed in device-mapper-multipath 0:0.8.4-28.el8_7.1.

References

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