What is CVE-2022-49845?

CVE-2022-49845 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.4 onward and patched in 5.4.225, 5.10.155, 5.15.79 and others. CVE-2022-49845 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49845?

CVE-2022-49845 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-2022-49845?

Yes, CVE-2022-49845 has been patched. Fixed versions include 5.4.225, 5.10.155, 5.15.79 and others. If you are running Linux kernel 5.4 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49845 actively exploited?

CVE-2022-49845 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49845

Medium

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939_send_one(): fix missing CAN header initialization The read access to struct canxl_frame::len inside of a j1939 created skbuff revealed a missing initialization of reserved and later filled elements in struct can_frame. This patch initializes the 8 byte CAN header with zero.

Package Linux Kernel

Published 2025-05-01

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

Weakness type

CWE-908

CVE-2022-49845 is classified as CWE-908

See CWE-908 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 5.4 and later are affected. Fixed in 5.4.225, 5.10.155, 5.15.79, 6.0.9, 6.1 and their respective stable series.

Affected from

≥ 5.4

Fixed in

✓ 5.4.225 5.4.x ✓ 5.10.155 5.10.x ✓ 5.15.79 5.15.x ✓ 6.0.9 6.0.x ✓ 6.1

References

The following references provide additional information about CVE-2022-49845 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/2719f82ad5d8199cf5f346ea8bb3998ad5323b72
Patch
Kernel patch commit
https://git.kernel.org/stable/c/3eb3d283e8579a22b81dd2ac3987b77465b2a22f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/69e86c6268d59ceddd0abe9ae8f1f5296f316c3c
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2022-49845

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-05-01

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49845?

CVE-2022-49845 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.4 onward and has been patched in 5.4.225, 5.10.155, 5.15.79 and others. CVE-2022-49845 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49845?

CVE-2022-49845 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-2022-49845?

Yes — CVE-2022-49845 has been patched. Fixed versions include 5.4.225, 5.10.155, 5.15.79 and others. If you are running Linux kernel 5.4 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49845 actively exploited?

No — CVE-2022-49845 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.