Is CVE-2023-40837 actively exploited?

No active exploitation of CVE-2023-40837 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-40837 be exploited remotely?

Yes. CVE-2023-40837 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-40837?

CVE-2023-40837 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-40837

CRITICAL

CVE-2023-40837

CWE-78Published: August 30, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Tenda AC6 US_AC6V1.0BR_V15.03.05.16_multi_TD01.bin function 'sub_ADD50' 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_ADD50" function to execute commands.

NVD Source

Risk Analysis

This critical command execution vulnerability in the Tenda AC6 firmware allows for unauthorized code execution. It is rated 9.8 on the CVSS scale.

No public exploit is known, and it is not in the CISA KEV catalog. The vulnerability is remotely exploitable.

Recommended Action

Update the Tenda AC6 firmware to the latest version.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-40837 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.