CVE-2026-74455

0.0

can: peak_usb: validate uCAN receive record lengths

Overview
Vulnerability Timeline

Overview

Description

In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: validate uCAN receive record lengths pcan_usb_fd_decode_buf() walks uCAN records packed in one USB receive buffer. Require each record to contain the fixed header for its type, and verify CAN payload bytes before copying them into the skb.

Details

INFO

Published Date :

Aug. 15, 2026, 1:17 p.m.

Last Modified :

Aug. 17, 2026, 6:19 a.m.

Remotely Exploit :

No

Source :

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

Impact

Affected Products

The following products are affected by CVE-2026-74455 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

Validate record lengths and CAN payload bytes before copying.

Ensure each record has a fixed header.
Verify CAN payload bytes before copying.

References

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-2026-74455.

URL	Resource
https://git.kernel.org/stable/c/2427ef427bdd78d862c7c76597bfd9eda88b81f1
https://git.kernel.org/stable/c/2c8f08f3641a074da40acf05baa5a18ae2739260
https://git.kernel.org/stable/c/6067c878e38d02a3d5c43497347e143f85c9064a
https://git.kernel.org/stable/c/93fcab2c6968446316bbb49548848df604d6346f
https://git.kernel.org/stable/c/d9c115948c3dd5fcc2d0245cec5eb76c098503c8

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-74455 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-2026-74455 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-2026-74455 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-2026-74455 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.

CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Aug. 17, 2026

Action	Type	Old Value	New Value
Changed	Affected	[{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': '6067c878e38d02a3d5c43497347e143f85c9064a', 'versionType': 'git'}, {'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': '2c8f08f3641a074da40acf05baa5a18ae2739260', 'versionType': 'git'}, {'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': '2427ef427bdd78d862c7c76597bfd9eda88b81f1', 'versionType': 'git'}, {'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': 'd9c115948c3dd5fcc2d0245cec5eb76c098503c8', 'versionType': 'git'}, {'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': '93fcab2c6968446316bbb49548848df604d6346f', 'versionType': 'git'}], 'programFiles': ['drivers/net/can/usb/peak_usb/pcan_usb_fd.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.151', 'versionType': 'semver', 'lessThanOrEqual': '6.6.'}, {'status': 'unaffected', 'version': '6.12.103', 'versionType': 'semver', 'lessThanOrEqual': '6.12.'}, {'status': 'unaffected', 'version': '6.18.44', 'versionType': 'semver', 'lessThanOrEqual': '6.18.'}, {'status': 'unaffected', 'version': '7.1.8', 'versionType': 'semver', 'lessThanOrEqual': '7.1.'}, {'status': 'unaffected', 'version': '7.2-rc6', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/can/usb/peak_usb/pcan_usb_fd.c'], 'defaultStatus': 'affected'}]	[{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': '6067c878e38d02a3d5c43497347e143f85c9064a', 'versionType': 'git'}, {'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': '2c8f08f3641a074da40acf05baa5a18ae2739260', 'versionType': 'git'}, {'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': '2427ef427bdd78d862c7c76597bfd9eda88b81f1', 'versionType': 'git'}, {'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': 'd9c115948c3dd5fcc2d0245cec5eb76c098503c8', 'versionType': 'git'}, {'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': '93fcab2c6968446316bbb49548848df604d6346f', 'versionType': 'git'}], 'programFiles': ['drivers/net/can/usb/peak_usb/pcan_usb_fd.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.151', 'versionType': 'semver', 'lessThanOrEqual': '6.6.'}, {'status': 'unaffected', 'version': '6.12.103', 'versionType': 'semver', 'lessThanOrEqual': '6.12.'}, {'status': 'unaffected', 'version': '6.18.44', 'versionType': 'semver', 'lessThanOrEqual': '6.18.'}, {'status': 'unaffected', 'version': '7.1.8', 'versionType': 'semver', 'lessThanOrEqual': '7.1.'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/can/usb/peak_usb/pcan_usb_fd.c'], 'defaultStatus': 'affected'}]

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

Aug. 15, 2026

Action	Type	New Value
Added	Affected	[{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': '6067c878e38d02a3d5c43497347e143f85c9064a', 'versionType': 'git'}, {'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': '2c8f08f3641a074da40acf05baa5a18ae2739260', 'versionType': 'git'}, {'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': '2427ef427bdd78d862c7c76597bfd9eda88b81f1', 'versionType': 'git'}, {'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': 'd9c115948c3dd5fcc2d0245cec5eb76c098503c8', 'versionType': 'git'}, {'status': 'affected', 'version': '0a25e1f4f18566b750ebd3ae995af64e23111e63', 'lessThan': '93fcab2c6968446316bbb49548848df604d6346f', 'versionType': 'git'}], 'programFiles': ['drivers/net/can/usb/peak_usb/pcan_usb_fd.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.151', 'versionType': 'semver', 'lessThanOrEqual': '6.6.'}, {'status': 'unaffected', 'version': '6.12.103', 'versionType': 'semver', 'lessThanOrEqual': '6.12.'}, {'status': 'unaffected', 'version': '6.18.44', 'versionType': 'semver', 'lessThanOrEqual': '6.18.'}, {'status': 'unaffected', 'version': '7.1.8', 'versionType': 'semver', 'lessThanOrEqual': '7.1.'}, {'status': 'unaffected', 'version': '7.2-rc6', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/can/usb/peak_usb/pcan_usb_fd.c'], 'defaultStatus': 'affected'}]
Added	Description	In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: validate uCAN receive record lengths pcan_usb_fd_decode_buf() walks uCAN records packed in one USB receive buffer. Require each record to contain the fixed header for its type, and verify CAN payload bytes before copying them into the skb.
Added	Reference	https://git.kernel.org/stable/c/2427ef427bdd78d862c7c76597bfd9eda88b81f1
Added	Reference	https://git.kernel.org/stable/c/2c8f08f3641a074da40acf05baa5a18ae2739260
Added	Reference	https://git.kernel.org/stable/c/6067c878e38d02a3d5c43497347e143f85c9064a
Added	Reference	https://git.kernel.org/stable/c/93fcab2c6968446316bbb49548848df604d6346f
Added	Reference	https://git.kernel.org/stable/c/d9c115948c3dd5fcc2d0245cec5eb76c098503c8

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.

Browse by Apps