CVE-2023-40839: Tenda AC6 Firmware

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

Tenda AC6 US_AC6V1.0BR_V15.03.05.16_multi_TD01.bin function 'sub_ADF3C' contains a command execution vulnerability. In the "formSetIptv" function, obtaining the "list" and "vlanId" fields, unfiltered passing these two fields as parameters to the "sub_ADF3C" function to execute commands.

Affected products

• Tenda AC6 Firmware: version 15.03.05.16 only

Published 2023-08-30. Last modified 2026-06-17.