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CVE-2025-39730
NFS: Fix filehandle bounds checking in nfs_fh_to_dentry()
Description

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() The function needs to check the minimal filehandle length before it can access the embedded filehandle.

INFO

Published Date :

Sept. 7, 2025, 4:15 p.m.

Last Modified :

Sept. 7, 2025, 4:15 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2025-39730 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Update the Linux kernel to apply the fix for filehandle bounds checking in NFS.
  • Update the Linux kernel to the latest version.
  • Apply the specific NFS patch for filehandle bounds checking.
  • Reboot the system after applying the update.
  • Verify the NFS functionality after the update.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-39730.

URL Resource
https://git.kernel.org/stable/c/12ad3def2e5e0b120e3d0cb6ce8b7b796819ad40
https://git.kernel.org/stable/c/2ad40b7992aa26bc631afc1a995b0e3ddc30de3f
https://git.kernel.org/stable/c/3570ef5c31314c13274c935a20b91768ab5bf412
https://git.kernel.org/stable/c/763810bb883cb4de412a72f338d80947d97df67b
https://git.kernel.org/stable/c/7dd36f7477d1e03a1fcf8d13531ca326c4fb599f
https://git.kernel.org/stable/c/7f8eca87fef7519e9c41f3258f25ebc2752247ee
https://git.kernel.org/stable/c/b7f7866932466332a2528fda099000b035303485
https://git.kernel.org/stable/c/cb09afa0948d96b1e385d609ed044bb1aa043536
https://git.kernel.org/stable/c/ef93a685e01a281b5e2a25ce4e3428cf9371a205
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-39730 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-39730 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-39730 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-39730 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Sep. 07, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() The function needs to check the minimal filehandle length before it can access the embedded filehandle.
    Added Reference https://git.kernel.org/stable/c/12ad3def2e5e0b120e3d0cb6ce8b7b796819ad40
    Added Reference https://git.kernel.org/stable/c/2ad40b7992aa26bc631afc1a995b0e3ddc30de3f
    Added Reference https://git.kernel.org/stable/c/3570ef5c31314c13274c935a20b91768ab5bf412
    Added Reference https://git.kernel.org/stable/c/763810bb883cb4de412a72f338d80947d97df67b
    Added Reference https://git.kernel.org/stable/c/7dd36f7477d1e03a1fcf8d13531ca326c4fb599f
    Added Reference https://git.kernel.org/stable/c/7f8eca87fef7519e9c41f3258f25ebc2752247ee
    Added Reference https://git.kernel.org/stable/c/b7f7866932466332a2528fda099000b035303485
    Added Reference https://git.kernel.org/stable/c/cb09afa0948d96b1e385d609ed044bb1aa043536
    Added Reference https://git.kernel.org/stable/c/ef93a685e01a281b5e2a25ce4e3428cf9371a205
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.