PT-2026-2621

CVE-2025-71100

Published

2025-11-27

Updated

2026-10-21

Description by

CVSS 3.1

7.6

High

MetricsAV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the Linux kernel related to the rtlwifi driver and the 8192cu component. A flaw in the rtl92cu tx fill desc() function can lead to a tid (Traffic Identification) value being out of range for the sta entry->tids[] array. This can trigger an out-of-bounds write, resulting in a UBSAN (Undefined Behavior Sanitizer) warning. The issue occurs when the TID obtained from ieee80211 get tid() exceeds the maximum allowed TID count.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploitability

Exploit

Impacts

Vendors