CVE-2026-3871

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CVSS 3.1

6.5 medium

EPSS

<1%p6

Published

Jun 2, 2026 (Jun 2, 2026)

Modified

Jul 22, 2026

Description

A buffer overflow vulnerability in the UPnP DeletePortMapping() command in Zyxel VMG4005-B50B firmware versions through 5.13(ABRL.5.4)C0 could allow an adjacent attacker to trigger a temporary denial-of-service (DoS) condition affecting the UPnP function of the affected device.

Weakness: CWE-120
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.2%)

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