What is CVE-2024-36943?

CVE-2024-36943 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, affecting Linux kernel versions from 6.7 onward and patched in 6.8.10 and 6.9. CVE-2024-36943 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-36943?

CVE-2024-36943 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-36943?

Yes, CVE-2024-36943 has been patched. Fixed versions include 6.8.10 and 6.9. If you are running Linux kernel 6.7 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-36943 actively exploited?

CVE-2024-36943 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-36943

Medium

In the Linux kernel, the following vulnerability has been resolved: fs/proc/task_mmu: fix loss of young/dirty bits during pagemap scan make_uffd_wp_pte() was previously doing: pte = ptep_get(ptep); ptep_modify_prot_start(ptep); pte = pte_mkuffd_wp(pte); ptep_modify_prot_commit(ptep, pte); But if another thread accessed or dirtied the pte between the first 2 calls, this could lead to loss of that information. Since ptep_modify_prot_start() gets and clears atomically, the following is the correct pattern and prevents any possible race. Any access after the first call would see an invalid pte and cause a fault: pte = ptep_modify_prot_start(ptep); pte = pte_mkuffd_wp(pte); ptep_modify_prot_commit(ptep, pte);

Package Linux Kernel

Published 2024-05-30

Last modified 2025-10-01

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 6.7 and later are affected. Fixed in 6.8.10, 6.9 and their respective stable series.

Affected from

≥ 6.7

Fixed in

✓ 6.8.10 6.8.x ✓ 6.9

References

2 total

Kernel Git
https://git.kernel.org/stable/c/74b3d66f91d9f539f99faad74d796fa9a389a015

Patch
Kernel Git
https://git.kernel.org/stable/c/c70dce4982ce1718bf978a35f8e26160b82081f4

Patch

Details

CVE ID CVE-2024-36943

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2024-05-30

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-36943?

CVE-2024-36943 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 . It affects Linux kernel versions from 6.7 onward and has been patched in 6.8.10 and 6.9. CVE-2024-36943 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-36943?

CVE-2024-36943 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-36943?

Yes. CVE-2024-36943 has been patched. Fixed versions include 6.8.10 and 6.9. If you are running Linux kernel 6.7 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-36943 actively exploited?

No. CVE-2024-36943 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.