Is CVE-2023-40845 actively exploited?

No active exploitation of CVE-2023-40845 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-40845 be exploited remotely?

Yes. CVE-2023-40845 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-40845?

CVE-2023-40845 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-40845

CRITICAL

CVE-2023-40845

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 'sub_34FD0.' In the function, it reads user provided parameters and passes variables to the function without any length checks.

NVD Source

Risk Analysis

A buffer overflow exists in the Tenda AC6 firmware due to missing length validation on input parameters. This critical flaw carries a CVSS score of 9.8, indicating a high risk of unauthorized system control.

No public exploit is currently known, and it is not listed in the CISA KEV catalog. The vulnerability is remotely exploitable with low attack complexity.

Recommended Action

Apply the latest firmware updates provided by Tenda to remediate this issue.

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-2023-40845 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.