What is CVE-2022-49103?

CVE-2022-49103 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.5 onward and patched in 5.10.111, 5.15.34, 5.16.20 and others. CVE-2022-49103 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49103?

CVE-2022-49103 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-2022-49103?

Yes, CVE-2022-49103 has been patched. Fixed versions include 5.10.111, 5.15.34, 5.16.20 and others. If you are running Linux kernel 5.5 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49103 actively exploited?

CVE-2022-49103 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49103

Medium

In the Linux kernel, the following vulnerability has been resolved: NFSv4.2: fix reference count leaks in _nfs42_proc_copy_notify() [You don't often get email from [email protected]. Learn why this is important at http://aka.ms/LearnAboutSenderIdentification.] The reference counting issue happens in two error paths in the function _nfs42_proc_copy_notify(). In both error paths, the function simply returns the error code and forgets to balance the refcount of object `ctx`, bumped by get_nfs_open_context() earlier, which may cause refcount leaks. Fix it by balancing refcount of the `ctx` object before the function returns in both error paths.

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 5.5 and later are affected. Fixed in 5.10.111, 5.15.34, 5.16.20, 5.17.3, 5.18 and their respective stable series.

Affected from

≥ 5.5

Fixed in

✓ 5.10.111 5.10.x ✓ 5.15.34 5.15.x ✓ 5.16.20 5.16.x ✓ 5.17.3 5.17.x ✓ 5.18

References

The following references provide additional information about CVE-2022-49103 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/9b9feec97c1fc7dd9bb69f62c4905cddf1801599
Patch
Kernel patch commit
https://git.kernel.org/stable/c/b37f482ba9f0e6382c188e3fccf6c4b2fdc938eb
Patch
Kernel patch commit
https://git.kernel.org/stable/c/b7f114edd54326f730a754547e7cfb197b5bc132
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2022-49103

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-2022-49103?

CVE-2022-49103 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.5 onward and has been patched in 5.10.111, 5.15.34, 5.16.20 and others. CVE-2022-49103 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49103?

CVE-2022-49103 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-2022-49103?

Yes — CVE-2022-49103 has been patched. Fixed versions include 5.10.111, 5.15.34, 5.16.20 and others. If you are running Linux kernel 5.5 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49103 actively exploited?

No — CVE-2022-49103 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.