CVE-2021-43573: Realtek RTL8195AM Firmware

Critical severity, CVSS 9.8. EPSS: 1.1% chance of exploitation in the next 30 days.

A buffer overflow was discovered on Realtek RTL8195AM devices before 2.0.10. It exists in the client code when processing a malformed IE length of HT capability information in the Beacon and Association response frame.

Affected products

• Realtek RTL8195AM Firmware: up to and including 2.0.10

Published 2021-11-11. Last modified 2026-06-17.