Skip to content
OpenAdvisories
Medium · 6.5 CVE-2026-3870 EUVD-2026-33873GHSA-r75m-m2v9-89vv

A buffer overflow vulnerability in the UPnP AddPortMapping() command in Zyxel VMG4005-B50B firmware versions through 5.13(ABRL.5.4)C0 could…

Published Jun 2, 2026 · Updated Jun 2, 2026 · Assigned by Zyxel

Vendor: Zyxel Product: VMG4005-B50B firmware Category: Network devices

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.

Affected products

VendorProductAffectedFixed
Zyxel VMG4005-B50B firmware <= 5.13(ABRL.5.4)C0 —

References