CVE-2020-24987

critical

Description

Tenda AC18 Router through V15.03.05.05_EN and through V15.03.05.19(6318) CN devices could cause a remote code execution due to incorrect authentication handling of vulnerable logincheck() function in /usr/lib/lua/ngx_authserver/ngx_wdas.lua file if the administrator UI Interface is set to "radius".

References

https://www.tendacn.com/en/product/AC18.html

https://drive.google.com/file/d/1iqpr0EofOBC6kCq2USTOBPRlJu_naFjQ/view?usp=sharing

https://cwe.mitre.org/data/definitions/287.html

Details

Source: Mitre, NVD

Published: 2020-09-04

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.0265