What is CVE-2022-49166?

CVE-2022-49166 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 4.9.311, 4.14.276, 4.19.238 and others. CVE-2022-49166 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49166?

CVE-2022-49166 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-2022-49166?

Yes, CVE-2022-49166 has been patched. Fixed versions include 4.9.311, 4.14.276, 4.19.238 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-2022-49166 actively exploited?

CVE-2022-49166 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49166

Medium

In the Linux kernel, the following vulnerability has been resolved: ntfs: add sanity check on allocation size ntfs_read_inode_mount invokes ntfs_malloc_nofs with zero allocation size. It triggers one BUG in the __ntfs_malloc function. Fix this by adding sanity check on ni->attr_list_size.

Package Linux Kernel

Published 2025-02-26

Last modified 2025-10-15

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 4.9.311, 4.14.276, 4.19.238, 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2, 5.18 and their respective stable series.

Affected from

≥ 2.6.12

Fixed in

✓ 4.9.311 4.9.x ✓ 4.14.276 4.14.x ✓ 4.19.238 4.19.x ✓ 5.4.189 5.4.x ✓ 5.10.110 5.10.x ✓ 5.15.33 5.15.x ✓ 5.16.19 5.16.x ✓ 5.17.2 5.17.x ✓ 5.18

References

The following references provide additional information about CVE-2022-49166 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/07793d2e55563124108762f4e5f811db92ffe02f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/115fae2c1566eacc5ad2055f72521354612e72c3
Patch
Kernel patch commit
https://git.kernel.org/stable/c/21d490232f323ed4053eb9924615e6fea291f154
Patch

9 patch commits total View all on NVD

Details

CVE ID CVE-2022-49166

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-10-15

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49166?

CVE-2022-49166 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 4.9.311, 4.14.276, 4.19.238 and others. CVE-2022-49166 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49166?

CVE-2022-49166 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-2022-49166?

Yes — CVE-2022-49166 has been patched. Fixed versions include 4.9.311, 4.14.276, 4.19.238 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-2022-49166 actively exploited?

No — CVE-2022-49166 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.