Is CVE-2023-38940 actively exploited?

No active exploitation of CVE-2023-38940 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-38940 be exploited remotely?

Yes. CVE-2023-38940 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-38940?

CVE-2023-38940 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-38940

CRITICAL

CVE-2023-38940

CWE-787Published: August 7, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Tenda F1203 V2.0.1.6, FH1203 V2.0.1.6 and FH1205 V2.0.0.7(775) were discovered to contain a stack overflow via the ssid parameter in the form_fast_setting_wifi_set function.

NVD Source

Risk Analysis

Multiple Tenda router models are susceptible to a stack-based buffer overflow via the ssid parameter. This critical vulnerability allows remote, unauthenticated attackers to execute arbitrary code on the affected devices.

No public exploit is known for this issue, and it is not listed in the CISA KEV catalog. It is remotely exploitable with low attack complexity.

Recommended Action

Check the manufacturer's website for firmware updates. Restrict management interface access to trusted networks to reduce exposure.

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-2023-38940 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.