CVE-2021-39306

9.8 criticalEPSS 1.3%

Critical (9.8) in realtek rtl8195am firmware. EPSS 1.3% chance of exploitation in the next 30 days.

A stack buffer overflow was discovered on Realtek RTL8195AM device before 2.0.10, it exists in the client code when an attacker sends a big size Authentication challenge text in WEP security.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.3% chance of exploitation in the next 30 days; higher than 70% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2021-12-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

realtek:rtl8195am_firmware

References

https://www.amebaiot.com/en/security_bulletin/cve-2021-39306/
https://www.realtek.com
https://www.amebaiot.com/en/security_bulletin/cve-2021-39306/
https://www.realtek.com

Check your stack JSON