What is CVE-2022-50407?

CVE-2022-50407 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Uncontrolled Recursion flaw (CWE-674), affecting Linux kernel versions from 5.4 onward and patched in 6.0.16, 6.1.2 and 6.2. CVE-2022-50407 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50407?

CVE-2022-50407 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-50407?

Yes, CVE-2022-50407 has been patched. Fixed versions include 6.0.16, 6.1.2 and 6.2. If you are running Linux kernel 5.4 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50407 actively exploited?

CVE-2022-50407 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Uncontrolled Recursion (CWE-674)?

The product does not properly control the amount of recursion which triggers resource consumption. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/674.html

CVE-2022-50407

Medium

In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/qm - increase the memory of local variables Increase the buffer to prevent stack overflow by fuzz test. The maximum length of the qos configuration buffer is 256 bytes. Currently, the value of the 'val buffer' is only 32 bytes. The sscanf does not check the dest memory length. So the 'val buffer' may stack overflow.

Package Linux Kernel

Published 2025-09-18

Last modified 2026-01-14

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-674

CVE-2022-50407 is a Uncontrolled Recursion vulnerability

What is Uncontrolled Recursion?

The product does not properly control the amount of recursion which triggers resource consumption. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.4 and later are affected. Fixed in 6.0.16, 6.1.2, 6.2 and their respective stable series.

Affected from

≥ 5.4

Fixed in

✓ 6.0.16 6.0.x ✓ 6.1.2 6.1.x ✓ 6.2

References

3 total

Kernel Git
https://git.kernel.org/stable/c/34c4f8ad45b4ea814c7ecc3f23a2d292959d5a52

Patch
Kernel Git
https://git.kernel.org/stable/c/3efe90af4c0c46c58dba1b306de142827153d9c0

Patch
Kernel Git
https://git.kernel.org/stable/c/fc521abb6ee4b8f06fdfc52646140dab6a2ed334

Patch

Details

CVE ID CVE-2022-50407

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-09-18

Modified 2026-01-14

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-50407?

CVE-2022-50407 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Uncontrolled Recursion flaw (CWE-674) . It affects Linux kernel versions from 5.4 onward and has been patched in 6.0.16, 6.1.2 and 6.2. CVE-2022-50407 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-50407?

CVE-2022-50407 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-50407?

Yes. CVE-2022-50407 has been patched. Fixed versions include 6.0.16, 6.1.2 and 6.2. If you are running Linux kernel 5.4 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50407 actively exploited?

No. CVE-2022-50407 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.