CVE-2026-63928

Updated on 19 Jul 2026

Severity

6.8 Medium severity

Details

CVSS score
6.8

Overview

About vulnerability

In the Linux kernel, the following vulnerability has been resolved:

USB: serial: omninet: fix memory corruption with small endpoint

Make sure that the bulk-out buffers are at least as large as the hardcoded transfer size to avoid user-controlled slab corruption should a malicious device report a smaller endpoint max packet size than expected.

Details

Fixes

KernelCare state

Live-patch status from KernelCare for each operating system.

Operating system Status Covered kernels
AlmaLinux 9.6 ESU Planned —
Debian 12 Planned —
Ubuntu 22.04 Planned —
Ubuntu 22.04 AWS Planned —
Ubuntu 22.04 Azure Planned —
Ubuntu 22.04 HWE Noble AWS Planned —
Ubuntu 24.04 Planned —
Ubuntu 24.04 AWS Planned —
Ubuntu 26.04 Will Not Fix —