AUGUST 27, 2026
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Case File

CVE-2026-3870

MEDIUM · CVSS 6.5 EPSS 0.17%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-06-02 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.5. It may lead to a denial-of-service condition.

CVE
CVE-2026-3870
Severity
MEDIUM
CVSS
6.5
EPSS
0.17%

Original NVD Description

A buffer overflow vulnerability in the UPnP AddPortMapping() 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.