What is CVE-2023-4130?

CVE-2023-4130 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.15 onward and patched in 5.15.127, 6.1.46, 6.4.11 and others. CVE-2023-4130 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-4130?

CVE-2023-4130 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-2023-4130?

Yes, CVE-2023-4130 has been patched. Fixed versions include 5.15.127, 6.1.46, 6.4.11 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-4130 actively exploited?

CVE-2023-4130 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-4130

Medium

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea() There are multiple smb2_ea_info buffers in FILE_FULL_EA_INFORMATION request from client. ksmbd find next smb2_ea_info using ->NextEntryOffset of current smb2_ea_info. ksmbd need to validate buffer length Before accessing the next ea. ksmbd should check buffer length using buf_len, not next variable. next is the start offset of current ea that got from previous ea.

Package Linux Kernel

Published 2025-08-16

Last modified 2025-11-18

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 5.15 and later are affected. Fixed in 5.15.127, 6.1.46, 6.4.11, 6.5 and their respective stable series.

Affected from

≥ 5.15

Fixed in

✓ 5.15.127 5.15.x ✓ 6.1.46 6.1.x ✓ 6.4.11 6.4.x ✓ 6.5

References

The following references provide additional information about CVE-2023-4130 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/4bf629262f9118ee91b1c3a518ebf2b3bcb22180
Patch
Kernel patch commit
https://git.kernel.org/stable/c/79ed288cef201f1f212dfb934bcaac75572fb8f6
Patch
Kernel patch commit
https://git.kernel.org/stable/c/aeb974907642be095e38ecb1a400ca583958b2b0
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2023-4130

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-08-16

Modified 2025-11-18

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-4130?

CVE-2023-4130 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.15 onward and has been patched in 5.15.127, 6.1.46, 6.4.11 and others. CVE-2023-4130 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-4130?

CVE-2023-4130 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-2023-4130?

Yes — CVE-2023-4130 has been patched. Fixed versions include 5.15.127, 6.1.46, 6.4.11 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-4130 actively exploited?

No — CVE-2023-4130 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.