Is CVE-2026-4489 actively exploited?

No active exploitation of CVE-2026-4489 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-4489 be exploited remotely?

Yes. CVE-2026-4489 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-4489?

CVE-2026-4489 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2026-4489

CWE-119Published: March 20, 2026· Updated: Mar 24, 2026

8.8

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:14.2th

Official Description

A vulnerability was detected in Tenda A18 Pro 02.03.02.28. This vulnerability affects the function form_fast_setting_wifi_set of the file /goform/fast_setting_wifi_set. The manipulation results in stack-based buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.

NVD Source

Technical Analysis

CVE-2026-4489 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

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.