CVE-2026-74458: can: kvaser_usb_leaf: kvaser_usb_leaf_wait_cmd(): validate received command extents
Published Aug 15, 2026
·Updated
can: kvaserusbleaf: kvaserusbleafwaitcmd(): validate received command extents
Affected Software
2 affected componentsFixes available
Linux Linux kernel
Microsoft azl3 kernel 6.6.150.1-1<6.6.152.1-1
6.6.152.1-1
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.152.1-1
Event History
Aug 15, 2026
CVE Published
via MITRE·12:27 PM
Data Sourced
via MITRE·12:27 PM
Description
Data Sourced
via NVD·01:17 PM
Description
Aug 23, 2026
Data Sourced
via Microsoft·10:03 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-74458?
CVE-2026-74458 has a risk rating of 47.
2
How do I fix CVE-2026-74458?
To fix CVE-2026-74458, ensure that your Linux kernel is updated to the latest version that addresses this vulnerability.
3
What systems are affected by CVE-2026-74458?
CVE-2026-74458 affects systems running specific versions of the Linux kernel that include the kvaser_usb_leaf driver.
4
What types of attacks can exploit CVE-2026-74458?
CVE-2026-74458 can be exploited through crafted USB commands, potentially allowing for unauthorized command execution.
5
Is CVE-2026-74458 being actively exploited in the wild?
As of the latest information, there are no confirmed reports of active exploitation of CVE-2026-74458.