What is CVE-2023-54104?

CVE-2023-54104 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 5.9 onward and patched in 5.10.190, 5.15.126, 6.1.45 and others. CVE-2023-54104 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-54104?

CVE-2023-54104 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2023-54104?

Yes, CVE-2023-54104 has been patched. Fixed versions include 5.10.190, 5.15.126, 6.1.45 and others. If you are running Linux kernel 5.9 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-54104 actively exploited?

CVE-2023-54104 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-54104

High

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: fsl_upm: Fix an off-by one test in fun_exec_op() 'op-cs' is copied in 'fun->mchip_number' which is used to access the 'mchip_offsets' and the 'rnb_gpio' arrays. These arrays have NAND_MAX_CHIPS elements, so the index must be below this limit. Fix the sanity check in order to avoid the NAND_MAX_CHIPS value. This would lead to out-of-bound accesses.

Package Linux Kernel

Published 2025-12-24

Last modified 2026-08-04

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected versions

Linux kernel versions 5.9 and later are affected. Fixed in 5.10.190, 5.15.126, 6.1.45, 6.4.10, 6.5 and their respective stable series.

Affected from

≥ 5.9

Fixed in

✓ 5.10.190 5.10.x ✓ 5.15.126 5.15.x ✓ 6.1.45 6.1.x ✓ 6.4.10 6.4.x ✓ 6.5

References

5 total

Details

CVE ID CVE-2023-54104

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-12-24

Modified 2026-08-04

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-54104?

CVE-2023-54104 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 5.9 onward and has been patched in 5.10.190, 5.15.126, 6.1.45 and others. CVE-2023-54104 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-54104?

CVE-2023-54104 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2023-54104?

Yes. CVE-2023-54104 has been patched. Fixed versions include 5.10.190, 5.15.126, 6.1.45 and others. If you are running Linux kernel 5.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-54104 actively exploited?

No. CVE-2023-54104 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.