What is CVE-2025-68351?

CVE-2025-68351 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.12.23 onward and patched in 6.12.68, 6.18.2 and 6.19. CVE-2025-68351 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-68351?

CVE-2025-68351 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-2025-68351?

Yes, CVE-2025-68351 has been patched. Fixed versions include 6.12.68, 6.18.2 and 6.19. If you are running Linux kernel 6.12.23 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-68351 actively exploited?

CVE-2025-68351 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-68351

Medium

In the Linux kernel, the following vulnerability has been resolved: exfat: fix refcount leak in exfat_find Fix refcount leaks in `exfat_find` related to `exfat_get_dentry_set`. Function `exfat_get_dentry_set` would increase the reference counter of `es->bh` on success. Therefore, `exfat_put_dentry_set` must be called after `exfat_get_dentry_set` to ensure refcount consistency. This patch relocate two checks to avoid possible leaks.

Package Linux Kernel

Published 2025-12-24

Last modified 2026-02-26

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 6.12.23, 6.13.11, 6.14 and later are affected. Fixed in 6.12.68, 6.18.2, 6.19 and their respective stable series.

Affected from

≥ 6.12.23 ≥ 6.13.11 ≥ 6.14

Fixed in

✓ 6.12.68 6.12.x ✓ 6.18.2 6.18.x ✓ 6.19

References

The following references provide additional information about CVE-2025-68351 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/9aee8de970f18c2aaaa348e3de86c38e2d956c1d
Patch
Kernel patch commit
https://git.kernel.org/stable/c/d009ff8959d28d2a33aeb96a5f7e7161c421d78f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/fc9ce762525e73438d31b613f18bca92a4d3d578
Patch

Details

CVE ID CVE-2025-68351

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-12-24

Modified 2026-02-26

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-68351?

CVE-2025-68351 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.12.23 onward and has been patched in 6.12.68, 6.18.2 and 6.19. CVE-2025-68351 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-68351?

CVE-2025-68351 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-2025-68351?

Yes — CVE-2025-68351 has been patched. Fixed versions include 6.12.68, 6.18.2 and 6.19. If you are running Linux kernel 6.12.23 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-68351 actively exploited?

No — CVE-2025-68351 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.