CVE-2021-40546

MediumCVSS 4.9/10Last modified Jun 17, 2026

Description

Tenda AC6 US_AC6V4.0RTL_V02.03.01.26_cn.bin allows attackers (who have the administrator password) to cause a denial of service (device crash) via a long string in the wifiPwd_5G parameter to /goform/setWifi.

Metrics

CVSS 3.1 4.9/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-404

Affected software

Vendor	Product	Versions
n/a	n/a	n/a
tenda	ac6	us_ac6v4.0rtl_v02.03.01.26_cn.bin

References

https://github.com/doudoudedi/buffer_overflow/blob/main/Tenda%20AC6%20V4.0-Denial%20of%20Service%20Vulnerability.mdExploit, Third Party Advisory
https://github.com/doudoudedi/buffer_overflow/blob/main/Tenda%20AC6%20V4.0-Denial%20of%20Service%20Vulnerability.mdExploit, Third Party Advisory

Timeline

Published: Sep 5, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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