What is CVE-2022-49672?

CVE-2022-49672 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 4.15 onward and patched in 4.19.251, 5.4.204, 5.10.129 and others. CVE-2022-49672 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49672?

CVE-2022-49672 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-2022-49672?

Yes, CVE-2022-49672 has been patched. Fixed versions include 4.19.251, 5.4.204, 5.10.129 and others. If you are running Linux kernel 4.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49672 actively exploited?

CVE-2022-49672 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49672

Medium

In the Linux kernel, the following vulnerability has been resolved: net: tun: unlink NAPI from device on destruction Syzbot found a race between tun file and device destruction. NAPIs live in struct tun_file which can get destroyed before the netdev so we have to del them explicitly. The current code is missing deleting the NAPI if the queue was detached first.

Package Linux Kernel

Published 2025-02-26

Last modified 2025-10-24

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 4.15 and later are affected. Fixed in 4.19.251, 5.4.204, 5.10.129, 5.15.53, 5.18.10, 5.19 and their respective stable series.

Affected from

≥ 4.15

Fixed in

✓ 4.19.251 4.19.x ✓ 5.4.204 5.4.x ✓ 5.10.129 5.10.x ✓ 5.15.53 5.15.x ✓ 5.18.10 5.18.x ✓ 5.19

References

The following references provide additional information about CVE-2022-49672 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/3b9bc84d311104906d2b4995a9a02d7b7ddab2db
Patch
Kernel patch commit
https://git.kernel.org/stable/c/8145f77d38de4f88b8a69e1463f5c09ba189d77c
Patch
Kernel patch commit
https://git.kernel.org/stable/c/82e729aee59acefe135fceffadcbc5b86dd4f1b9
Patch

6 patch commits total View all on NVD

Details

CVE ID CVE-2022-49672

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-10-24

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49672?

CVE-2022-49672 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.15 onward and has been patched in 4.19.251, 5.4.204, 5.10.129 and others. CVE-2022-49672 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49672?

CVE-2022-49672 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-2022-49672?

Yes — CVE-2022-49672 has been patched. Fixed versions include 4.19.251, 5.4.204, 5.10.129 and others. If you are running Linux kernel 4.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49672 actively exploited?

No — CVE-2022-49672 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.