CVE-2023-40839

CriticalCVSS 9.8

Published: 30/08/2023(UTC)Updated: 17/06/2026(UTC)Translated: 18/06/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Elevated risk

0.95%

57th percentile - higher than 57% of all known CVEs

Summary

The Tenda AC6 device has a command execution vulnerability in the 'sub_ADF3C' function. In the 'formSetIptv' function, the 'list' and 'vlanId' parameters are passed unfiltered, allowing for arbitrary command execution.

Risk Assessment

This vulnerability could lead to unauthorized command execution, posing a significant security risk to the organization's network.

Recommendation

It is recommended to update the device firmware to the latest version to mitigate this vulnerability and implement additional security measures.

Original NVD description (English source)

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.