What is CVE-2021-47037?

CVE-2021-47037 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.10 onward and patched in 5.10.238, 5.11.21, 5.12.4 and others. CVE-2021-47037 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47037?

CVE-2021-47037 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-2021-47037?

Yes, CVE-2021-47037 has been patched. Fixed versions include 5.10.238, 5.11.21, 5.12.4 and others. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47037 actively exploited?

CVE-2021-47037 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47037

Medium

In the Linux kernel, the following vulnerability has been resolved: ASoC: q6afe-clocks: fix reprobing of the driver Q6afe-clocks driver can get reprobed. For example if the APR services are restarted after the firmware crash. However currently Q6afe-clocks driver will oops because hw.init will get cleared during first _probe call. Rewrite the driver to fill the clock data at runtime rather than using big static array of clocks.

Package Linux Kernel

Published 2024-02-28

Last modified 2025-11-03

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

Affected versions

Linux kernel versions 5.10 and later are affected. Fixed in 5.10.238, 5.11.21, 5.12.4, 5.13 and their respective stable series.

Affected from

≥ 5.10

Fixed in

✓ 5.10.238 5.10.x ✓ 5.11.21 5.11.x ✓ 5.12.4 5.12.x ✓ 5.13

References

5 total

Kernel Git
https://git.kernel.org/stable/c/62413972f5266568848a36fd15160397b211fa74

Patch
Kernel Git
https://git.kernel.org/stable/c/6893df3753beafa5f7351228a9dd8157a57d7492

Patch
Kernel Git
https://git.kernel.org/stable/c/96fadf7e8ff49fdb74754801228942b67c3eeebd

Patch
Kernel Git
https://git.kernel.org/stable/c/2202e87fc19440cecfd4f7b4f60a7d48bc2e236c
Debian Security
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html

Details

CVE ID CVE-2021-47037

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-02-28

Modified 2025-11-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47037?

CVE-2021-47037 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.10 onward and has been patched in 5.10.238, 5.11.21, 5.12.4 and others. CVE-2021-47037 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47037?

CVE-2021-47037 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-2021-47037?

Yes. CVE-2021-47037 has been patched. Fixed versions include 5.10.238, 5.11.21, 5.12.4 and others. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47037 actively exploited?

No. CVE-2021-47037 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.