CVE-2022-3787
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.
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
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 High
CVSS: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 High
CVSS: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 High
CVSS: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 High
CVSS: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 High
CVSS: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 High
CVSS: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 High
CVSS: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 High
CVSS: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
| Package | Affected | Fixed |
|---|---|---|
device-mapper-multipathAlmaLinux:8 From an advisory covering 2 CVEs |
before 0.8.4-28.el8_7.1 | 0.8.4-28.el8_7.1 |
device-mapper-multipathAlmaLinux:9 From an advisory covering 2 CVEs |
before 0.8.7-12.el9_1.1 | 0.8.7-12.el9_1.1 |
device-mapper-multipathRed Hat:enterprise_linux:8::baseos |
before 0:0.8.4-28.el8_7.1 | 0:0.8.4-28.el8_7.1 |
device-mapper-multipathRed Hat:enterprise_linux:9::baseos |
before 0:0.8.7-12.el9_1.1 | 0:0.8.7-12.el9_1.1 |
device-mapper-multipathRocky Linux:8 |
before 0:0.8.4-28.el8_7.1 | 0:0.8.4-28.el8_7.1 |
device-mapper-multipathRocky Linux:9 |
before 0:0.8.7-12.el9_1.1 | 0:0.8.7-12.el9_1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| first indexed | CVE 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
bugzilla.redhat.com/show_bug.cgi?id=2138959
nvd.nist.gov/vuln/detail/CVE-2022-3787
github.com/advisories/GHSA-m46g-8pc6-m8q7
access.redhat.com/errata/RHSA-2022:7928
access.redhat.com/security/cve/CVE-2022-3787
bugzilla.redhat.com/2138959
Show 9 moreShow less
errata.almalinux.org/8/ALSA-2022-7928.html
access.redhat.com/errata/RHSA-2022:8453
errata.almalinux.org/9/ALSA-2022-8453.html
access.redhat.com/security/updates/classification
security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_7928.json
cve.org/CVERecord?id=CVE-2022-3787
security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_8453.json
errata.rockylinux.org/RLSA-2022:7928
errata.rockylinux.org/RLSA-2022:8453