What is CVE-2022-49621?

CVE-2022-49621 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 2.6.12 onward and patched in 4.9.324, 4.14.289, 4.19.253 and others. CVE-2022-49621 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49621?

CVE-2022-49621 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-2022-49621?

Yes, CVE-2022-49621 has been patched. Fixed versions include 4.9.324, 4.14.289, 4.19.253 and others. If you are running Linux kernel 2.6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49621 actively exploited?

CVE-2022-49621 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49621

Medium

In the Linux kernel, the following vulnerability has been resolved: cpufreq: pmac32-cpufreq: Fix refcount leak bug In pmac_cpufreq_init_MacRISC3(), we need to add corresponding of_node_put() for the three node pointers whose refcount have been incremented by of_find_node_by_name().

Package Linux Kernel

Published 2025-02-26

Last modified 2025-10-01

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 2.6.12 and later are affected. Fixed in 4.9.324, 4.14.289, 4.19.253, 5.4.207, 5.10.132, 5.15.56, 5.18.13, 5.19 and their respective stable series.

Affected from

≥ 2.6.12

Fixed in

✓ 4.9.324 4.9.x ✓ 4.14.289 4.14.x ✓ 4.19.253 4.19.x ✓ 5.4.207 5.4.x ✓ 5.10.132 5.10.x ✓ 5.15.56 5.15.x ✓ 5.18.13 5.18.x ✓ 5.19

References

The following references provide additional information about CVE-2022-49621 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/37c16fc2cb13a13f3c0193bfc6f2edef7d7df7d7
Patch
Kernel patch commit
https://git.kernel.org/stable/c/3ea9dbf7c2f436952bca331c6f5d72f75aca224e
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4513018d0bd739097570d26a7760551cba3deb56
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2022-49621

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49621?

CVE-2022-49621 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 2.6.12 onward and has been patched in 4.9.324, 4.14.289, 4.19.253 and others. CVE-2022-49621 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49621?

CVE-2022-49621 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-2022-49621?

Yes — CVE-2022-49621 has been patched. Fixed versions include 4.9.324, 4.14.289, 4.19.253 and others. If you are running Linux kernel 2.6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49621 actively exploited?

No — CVE-2022-49621 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.