CVE-2026-98773

A flaw was found in the Linux kernel's CDC ACM (Communications Device Class Abstract Control Model) USB driver. A timing race condition during device disconnection and port closure can lead to a use-after-free vulnerability when communication requests attempt to access already freed memory buffers. A local attacker could exploit this flaw to cause a Denial of Service (DoS) via a system crash or potentially achieve privilege escalation.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.