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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 02 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 02 Jun 2026 04:15:00 +0000

Type Values Removed Values Added
First Time appeared Zyxel
Zyxel vmg4005-b50b Firmware
Vendors & Products Zyxel
Zyxel vmg4005-b50b Firmware

Tue, 02 Jun 2026 03:45:00 +0000

Type Values Removed Values Added
Title Buffer Overflow in Zyxel VMG4005‑B50B UPnP DeletePortMapping Leading to Temporary DoS

Tue, 02 Jun 2026 02:30:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-120
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Zyxel

Published:

Updated: 2026-06-02T13:34:07.547Z

Reserved: 2026-03-10T08:42:18.809Z

Link: CVE-2026-3871

cve-icon Vulnrichment

Updated: 2026-06-02T13:34:03.258Z

cve-icon NVD

Status : Deferred

Published: 2026-06-02T03:16:17.023

Modified: 2026-07-22T19:10:00.120

Link: CVE-2026-3871

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-02T04:00:11Z

Weaknesses