What is CVE-2022-50156?

CVE-2022-50156 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Out-of-bounds Write flaw (CWE-787), affecting Linux kernel versions from 4.15 onward and patched in 4.19.256, 5.4.211, 5.10.137 and others. CVE-2022-50156 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50156?

CVE-2022-50156 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2022-50156?

Yes, CVE-2022-50156 has been patched. Fixed versions include 4.19.256, 5.4.211, 5.10.137 and others. If you are running Linux kernel 4.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50156 actively exploited?

CVE-2022-50156 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Write (CWE-787)?

The product writes data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/787.html

CVE-2022-50156

High

In the Linux kernel, the following vulnerability has been resolved: HID: cp2112: prevent a buffer overflow in cp2112_xfer() Smatch warnings: drivers/hid/hid-cp2112.c:793 cp2112_xfer() error: __memcpy() 'data->block[1]' too small (33 vs 255) drivers/hid/hid-cp2112.c:793 cp2112_xfer() error: __memcpy() 'buf' too small (64 vs 255) The 'read_length' variable is provided by 'data->block[0]' which comes from user and it(read_length) can take a value between 0-255. Add an upper bound to 'read_length' variable to prevent a buffer overflow in memcpy().

Package Linux Kernel

Published 2025-06-18

Last modified 2025-11-25

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-787

CVE-2022-50156 is a Out-of-bounds Write vulnerability

What is Out-of-bounds Write?

The product writes data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

Affected versions

Linux kernel versions 4.15 and later are affected. Fixed in 4.19.256, 5.4.211, 5.10.137, 5.15.61, 5.18.18, 5.19.2, 6.0 and their respective stable series.

Affected from

≥ 4.15

Fixed in

✓ 4.19.256 4.19.x ✓ 5.4.211 5.4.x ✓ 5.10.137 5.10.x ✓ 5.15.61 5.15.x ✓ 5.18.18 5.18.x ✓ 5.19.2 5.19.x ✓ 6.0

References

7 total

Kernel Git
https://git.kernel.org/stable/c/26e427ac85c2b8d0d108cc80b6de34d33e2780c4

Patch
Kernel Git
https://git.kernel.org/stable/c/381583845d19cb4bd21c8193449385f3fefa9caf

Patch
Kernel Git
https://git.kernel.org/stable/c/3af7d60e9a6c17d6d41c4341f8020511887d372d

Patch
Kernel Git
https://git.kernel.org/stable/c/519ff31a6ddd87aa4905bd9bf3b92e8b88801614

Patch
Kernel Git
https://git.kernel.org/stable/c/8489a20ac481b08c0391608d81ed3796d373cfdf

Patch

Showing 5 of 7 references View all on NVD

Details

CVE ID CVE-2022-50156

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-06-18

Modified 2025-11-25

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-50156?

CVE-2022-50156 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Out-of-bounds Write flaw (CWE-787) . It affects Linux kernel versions from 4.15 onward and has been patched in 4.19.256, 5.4.211, 5.10.137 and others. CVE-2022-50156 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-50156?

CVE-2022-50156 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2022-50156?

Yes. CVE-2022-50156 has been patched. Fixed versions include 4.19.256, 5.4.211, 5.10.137 and others. If you are running Linux kernel 4.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50156 actively exploited?

No. CVE-2022-50156 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.