Is CVE-2023-40897 actively exploited?

No active exploitation of CVE-2023-40897 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-40897 be exploited remotely?

Yes. CVE-2023-40897 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-40897?

CVE-2023-40897 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-40897

CRITICAL

CVE-2023-40897

CWE-787Published: August 24, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Tenda AC8 v4 US_AC8V4.0si_V16.03.34.06_cn was discovered to contain a stack overflow via parameter mac at /goform/GetParentControlInfo.

NVD Source

Risk Analysis

A critical stack overflow vulnerability in the Tenda AC8 firmware can be triggered via the mac parameter. The flaw is rated 9.8, reflecting the potential for unauthenticated remote code execution.

No public exploit is known for this vulnerability, and it is not in the CISA KEV. The flaw is remotely exploitable with low complexity.

Recommended Action

Update the Tenda AC8 firmware to the latest available version. Implement network segmentation to isolate the management interface from untrusted traffic.

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-2023-40897 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.