An authentication bypass vulnerability in the Universal Plug and Play (UPnP) framework of the Sercomm AOT-4221SR 4.6 Dual Band GPON ONU device allows an attackers to execute arbitrary SOAP requests via port 5555. This flaw exposes 15 administrative, WAN, LAN, and firewall services without requiring credentials, enabling attackers to modify core routing tables, alter DNS servers, remove firewall rules, and completely compromise the network.
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Fixes

Solution

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Workaround

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History

Mon, 02 Nov 2026 21:15:00 +0000

Type Values Removed Values Added
Title Authentication Bypass in Sercomm AOT-4221SR UPnP Allows Remote SOAP Control
Weaknesses CWE-284
CWE-287

Mon, 02 Nov 2026 19:30:00 +0000

Type Values Removed Values Added
Description An authentication bypass vulnerability in the Universal Plug and Play (UPnP) framework of the Sercomm AOT-4221SR 4.6 Dual Band GPON ONU device allows an attackers to execute arbitrary SOAP requests via port 5555. This flaw exposes 15 administrative, WAN, LAN, and firewall services without requiring credentials, enabling attackers to modify core routing tables, alter DNS servers, remove firewall rules, and completely compromise the network.
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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-11-02T19:24:42.448Z

Reserved: 2026-10-27T00:00:00.000Z

Link: CVE-2026-117082

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-02T20:17:33.677

Modified: 2026-11-02T20:17:33.677

Link: CVE-2026-117082

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-02T21:00:13Z

Weaknesses