CVE-2020-36109

9.8 criticalEPSS 4.2%

Critical (9.8) in asus rt-ax86u firmware. EPSS 4.2% chance of exploitation in the next 30 days.

ASUS RT-AX86U router firmware below version under 9.0.0.4_386 has a buffer overflow in the blocking_request.cgi function of the httpd module that can cause code execution when an attacker constructs malicious data.

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: 4.2% chance of exploitation in the next 30 days; higher than 90% of CVEs (scores of 2026-10-31)
CWE: CWE-120
Published: 2021-02-01
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

asus:rt-ax86u_firmware

References

https://www.asus.com/Static_WebPage/ASUS-Product-Security-Advisory/
https://www.asus.com/Static_WebPage/ASUS-Product-Security-Advisory/

Check your stack JSON