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CVE-2025-68351

5.5 · 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`.

Published Dec 24, 2025EPSS 0.17%

Overview

CVE-2025-68351 is a medium-severity vulnerability. It was published on December 24, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/9aee8de970f18c2aaaa348e3de86c38e2d956c1dRefgit.kernel.org/stable/c/d009ff8959d28d2a33aeb96a5f7e7161c421d78fRefgit.kernel.org/stable/c/fc9ce762525e73438d31b613f18bca92a4d3d578

How CyberStrike helps

Frequently asked questions

What is CVE-2025-68351?

CVE-2025-68351 is a medium-severity vulnerability. It was published on December 24, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-68351?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-68351?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-68351?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-68351 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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