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CVE-2025-40020
can: peak_usb: fix shift-out-of-bounds issue
Description

In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: fix shift-out-of-bounds issue Explicitly uses a 64-bit constant when the number of bits used for its shifting is 32 (which is the case for PC CAN FD interfaces supported by this driver). [mkl: update subject, apply manually]

INFO

Published Date :

Oct. 24, 2025, 1:15 p.m.

Last Modified :

Oct. 27, 2025, 1:20 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2025-40020 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
Apply kernel updates to fix shift-out-of-bounds in CAN drivers.
  • Update the Linux kernel.
  • Verify the CAN driver is patched.
  • Reboot the system if required.
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-2025-40020.

URL Resource
https://git.kernel.org/stable/c/176c81cbf9c4e348610a421aad800087c0401f60
https://git.kernel.org/stable/c/17edec1830e48c0becd61642d0e40bc753243b16
https://git.kernel.org/stable/c/394c58017e5f41043584c345106cae16a4613710
https://git.kernel.org/stable/c/48822a59ecc47d353400d38b1941d3ae7591ffff
https://git.kernel.org/stable/c/572c656802781cc57f4a3231eefa83547e75ed78
https://git.kernel.org/stable/c/61b1dd4c614935169d12bdecc26906e37b508618
https://git.kernel.org/stable/c/c443be70aaee42c2d1d251e0329e0a69dd96ae54
https://git.kernel.org/stable/c/eb79ed970670344380e77d62f8188e8015648d94
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-40020 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-2025-40020 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-2025-40020 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-2025-40020 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

    Oct. 24, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: fix shift-out-of-bounds issue Explicitly uses a 64-bit constant when the number of bits used for its shifting is 32 (which is the case for PC CAN FD interfaces supported by this driver). [mkl: update subject, apply manually]
    Added Reference https://git.kernel.org/stable/c/176c81cbf9c4e348610a421aad800087c0401f60
    Added Reference https://git.kernel.org/stable/c/17edec1830e48c0becd61642d0e40bc753243b16
    Added Reference https://git.kernel.org/stable/c/394c58017e5f41043584c345106cae16a4613710
    Added Reference https://git.kernel.org/stable/c/48822a59ecc47d353400d38b1941d3ae7591ffff
    Added Reference https://git.kernel.org/stable/c/572c656802781cc57f4a3231eefa83547e75ed78
    Added Reference https://git.kernel.org/stable/c/61b1dd4c614935169d12bdecc26906e37b508618
    Added Reference https://git.kernel.org/stable/c/c443be70aaee42c2d1d251e0329e0a69dd96ae54
    Added Reference https://git.kernel.org/stable/c/eb79ed970670344380e77d62f8188e8015648d94
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.