What is CVE-2022-49654?

CVE-2022-49654 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.9 onward and patched in 5.15.54, 5.18.11 and 5.19. CVE-2022-49654 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49654?

CVE-2022-49654 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-2022-49654?

Yes, CVE-2022-49654 has been patched. Fixed versions include 5.15.54, 5.18.11 and 5.19. If you are running Linux kernel 5.9 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49654 actively exploited?

CVE-2022-49654 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49654

Medium

In the Linux kernel, the following vulnerability has been resolved: net: dsa: qca8k: reset cpu port on MTU change It was discovered that the Documentation lacks of a fundamental detail on how to correctly change the MAX_FRAME_SIZE of the switch. In fact if the MAX_FRAME_SIZE is changed while the cpu port is on, the switch panics and cease to send any packet. This cause the mgmt ethernet system to not receive any packet (the slow fallback still works) and makes the device not reachable. To recover from this a switch reset is required. To correctly handle this, turn off the cpu ports before changing the MAX_FRAME_SIZE and turn on again after the value is applied.

Package Linux Kernel

Published 2025-02-26

Last modified 2025-10-23

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 5.9 and later are affected. Fixed in 5.15.54, 5.18.11, 5.19 and their respective stable series.

Affected from

≥ 5.9

Fixed in

✓ 5.15.54 5.15.x ✓ 5.18.11 5.18.x ✓ 5.19

References

The following references provide additional information about CVE-2022-49654 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/188c798f3c2554fa0d7147e9b97baf144b817019
Patch
Kernel patch commit
https://git.kernel.org/stable/c/1993f5a06736ada59dd54b50dc96755a38796ee5
Patch
Kernel patch commit
https://git.kernel.org/stable/c/386228c694bf1e7a7688e44412cb33500b0ac585
Patch

Details

CVE ID CVE-2022-49654

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-10-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49654?

CVE-2022-49654 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.9 onward and has been patched in 5.15.54, 5.18.11 and 5.19. CVE-2022-49654 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49654?

CVE-2022-49654 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-2022-49654?

Yes — CVE-2022-49654 has been patched. Fixed versions include 5.15.54, 5.18.11 and 5.19. If you are running Linux kernel 5.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49654 actively exploited?

No — CVE-2022-49654 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.