Is CVE-2023-40830 actively exploited?

No active exploitation of CVE-2023-40830 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-40830 be exploited remotely?

Yes. CVE-2023-40830 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-40830?

CVE-2023-40830 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-40830

CRITICAL

CVE-2023-40830

CWE-120Published: October 3, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Tenda AC6 v15.03.05.19 is vulnerable to Buffer Overflow as the Index parameter does not verify the length.

NVD Source

Risk Analysis

Tenda AC6 firmware version 15.03.05.19 is vulnerable to a buffer overflow due to a lack of length verification in the Index parameter. This critical 9.8 CVSS flaw could allow remote attackers to cause a crash or execute arbitrary code.

There is no known public exploit, and it is not in the CISA KEV. The vulnerability is remotely exploitable with low attack complexity.

Recommended Action

Update the Tenda AC6 firmware to a version that addresses this buffer overflow vulnerability.

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-2023-40830 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.