Is CVE-2023-40844 actively exploited?

No active exploitation of CVE-2023-40844 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-40844 be exploited remotely?

Yes. CVE-2023-40844 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-40844?

CVE-2023-40844 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-40844

CRITICAL

CVE-2023-40844

CWE-787Published: 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 is vulnerable to Buffer Overflow via function 'formWifiBasicSet.'

NVD Source

Risk Analysis

This critical vulnerability involves a buffer overflow in the Tenda AC6 firmware. Given the CVSS score of 9.8, it poses a significant risk to device integrity and availability.

There is no known public exploit for this vulnerability, and it is not tracked in the CISA KEV catalog. It is remotely exploitable.

Recommended Action

Ensure the device firmware is updated to the latest version released by the manufacturer.

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-2023-40844 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.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.