What is CVE-2024-57943?

CVE-2024-57943 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Access of Uninitialized Pointer flaw (CWE-824), affecting Linux kernel versions from 6.12 onward and patched in 6.12.10 and 6.13. CVE-2024-57943 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-57943?

CVE-2024-57943 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-2024-57943?

Yes, CVE-2024-57943 has been patched. Fixed versions include 6.12.10 and 6.13. If you are running Linux kernel 6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-57943 actively exploited?

CVE-2024-57943 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Access of Uninitialized Pointer (CWE-824)?

The product accesses or uses a pointer that has not been initialised, leading to undefined behaviour. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/824.html

CVE-2024-57943

High

In the Linux kernel, the following vulnerability has been resolved: exfat: fix the new buffer was not zeroed before writing Before writing, if a buffer_head marked as new, its data must be zeroed, otherwise uninitialized data in the page cache will be written. So this commit uses folio_zero_new_buffers() to zero the new buffers before ->write_end().

Package Linux Kernel

Published 2025-01-21

Last modified 2025-10-01

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

Weakness type

CWE-824

CVE-2024-57943 is a Access of Uninitialized Pointer vulnerability

What is Access of Uninitialized Pointer?

The product accesses or uses a pointer that has not been initialised, leading to undefined behaviour. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.12 and later are affected. Fixed in 6.12.10, 6.13 and their respective stable series.

Affected from

≥ 6.12

Fixed in

✓ 6.12.10 6.12.x ✓ 6.13

References

The following references provide additional information about CVE-2024-57943 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/942c6f91ab8d82a41650e717940b4e577173762f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/98e2fb26d1a9eafe79f46d15d54e68e014d81d8c
Patch

Details

CVE ID CVE-2024-57943

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-01-21

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-57943?

CVE-2024-57943 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Access of Uninitialized Pointer flaw (CWE-824) . It affects Linux kernel versions from 6.12 onward and has been patched in 6.12.10 and 6.13. CVE-2024-57943 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-57943?

CVE-2024-57943 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-2024-57943?

Yes — CVE-2024-57943 has been patched. Fixed versions include 6.12.10 and 6.13. If you are running Linux kernel 6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-57943 actively exploited?

No — CVE-2024-57943 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Access of Uninitialized Pointer (CWE-824)?

The product accesses or uses a pointer that has not been initialised, leading to undefined behaviour. View CWE-824 on MITRE CWE →