CVE-2025-40020
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-24

Last updated on: 2025-10-27

Assigner: kernel.org

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]
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2025-10-24
Last Modified
2025-10-27
Generated
2026-06-16
AI Q&A
2025-10-24
EPSS Evaluated
2026-06-15
NVD
CVE-2025-40020
EUVD
EUVD-2025-35839
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
peak_usb peak_usb *
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability in the Linux kernel's peak_usb driver involves a shift-out-of-bounds issue. Specifically, the code uses a 64-bit constant but shifts it by 32 bits, which is incorrect for the PC CAN FD interfaces supported by this driver. This can lead to unexpected behavior or errors in the driver.

Impact Analysis

The shift-out-of-bounds issue in the peak_usb driver could cause incorrect operation of PC CAN FD interfaces, potentially leading to system instability, crashes, or incorrect data handling when using these interfaces.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2025-40020. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart