Is CVE-2026-3972 actively exploited?

No active exploitation of CVE-2026-3972 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-3972 be exploited remotely?

Partially. CVE-2026-3972 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2026-3972?

CVE-2026-3972 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2026-3972

HIGH

CVE-2026-3972

CWE-119Published: March 12, 2026· Updated: Mar 12, 2026

8.8

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:6.7th

Official Description

A vulnerability was found in Tenda W3 1.0.0.3(2204). Affected by this issue is the function formSetCfm of the file /goform/setcfm of the component HTTP Handler. The manipulation of the argument funcpara1 results in stack-based buffer overflow. The attack can only be performed from the local network. The exploit has been made public and could be used.

NVD Source

Technical Analysis

CVE-2026-3972 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

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 8.8.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.