CVE-2020-20746

7.2 highEPSS 2.9%

High (7.2) in tendacn ac9 firmware. EPSS 2.9% chance of exploitation in the next 30 days.

A stack-based buffer overflow in the httpd server on Tenda AC9 V15.03.06.60_EN allows remote attackers to execute arbitrary code or cause a denial of service (DoS) via a crafted POST request to /goform/SetStaticRouteCfg.

Severity

CVSS 3.1

7.2 high

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

EPSS: 2.9% chance of exploitation in the next 30 days; higher than 86% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2021-09-30
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tendacn:ac9_firmware

References

https://cwe.mitre.org/data/definitions/121.html
https://github.com/grapefruitvul/vulinfo/blob/master/tenda/vul1.md
https://cwe.mitre.org/data/definitions/121.html
https://github.com/grapefruitvul/vulinfo/blob/master/tenda/vul1.md

Check your stack JSON