What is CVE-2021-46926?

CVE-2021-46926 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.3 onward and patched in 5.15.13 and 5.16. CVE-2021-46926 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-46926?

CVE-2021-46926 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-2021-46926?

Yes, CVE-2021-46926 has been patched. Fixed versions include 5.15.13 and 5.16. If you are running Linux kernel 5.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-46926 actively exploited?

CVE-2021-46926 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-46926

Medium

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: intel-sdw-acpi: harden detection of controller The existing code currently sets a pointer to an ACPI handle before checking that it's actually a SoundWire controller. This can lead to issues where the graph walk continues and eventually fails, but the pointer was set already. This patch changes the logic so that the information provided to the caller is set when a controller is found.

Package Linux Kernel

Published 2024-02-27

Last modified 2024-11-21

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 5.3 and later are affected. Fixed in 5.15.13, 5.16 and their respective stable series.

Affected from

≥ 5.3

Fixed in

✓ 5.15.13 5.15.x ✓ 5.16

References

2 total

Kernel Git
https://git.kernel.org/stable/c/385f287f9853da402d94278e59f594501c1d1dad

Patch
Kernel Git
https://git.kernel.org/stable/c/cce476954401e3421afafb25bbaa926050688b1d

Patch

Details

CVE ID CVE-2021-46926

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-02-27

Modified 2024-11-21

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-46926?

CVE-2021-46926 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.3 onward and has been patched in 5.15.13 and 5.16. CVE-2021-46926 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-46926?

CVE-2021-46926 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-2021-46926?

Yes. CVE-2021-46926 has been patched. Fixed versions include 5.15.13 and 5.16. If you are running Linux kernel 5.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-46926 actively exploited?

No. CVE-2021-46926 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.