Shenzhen Tenda Technology Co., Ltd. — 6 prefixes (MA-L)

A MAC address beginning with 8C:05:28, 0C:85:09, 50:DA:9E, 80:9F:E4, 8C:44:BB, or 74:DD:F0 belongs to Shenzhen Tenda Technology Co., Ltd., a Chinese networking-hardware vendor whose products typically show up as a home or SOHO Wi-Fi router, range extender, powerline adapter, or IP camera.

Tenda is a long-established consumer networking brand with global distribution and its own R&D and manufacturing operations. IEEE's MA-L registry lists six separate MA-L blocks under this exact registrant name and Shenzhen address, a pattern consistent with an active, multi-product vendor rather than a single throwaway registration.

Two other org strings in the same IEEE registry are legally distinct from this entry and must not be merged into it: a Dongguan-branch registration ("Tenda Technology Co.,Ltd.Dongguan branch") holding eleven MA-L blocks at a different address, and a separate single-OUI "Tenda Technology Co., Ltd." registration (C8:3A:35) at yet another Shenzhen address. Each is its own vendor slug.

Recent security research has flagged specific Tenda router firmware and models rather than the brand broadly. CERT/CC disclosed a hidden, unauthenticated admin backdoor (CVE-2026-11405) in /bin/httpd on multiple firmware builds in July 2026, and a separate advisory (CVE-2026-22080) found some models transmit admin credentials as reversible Base64 instead of real encryption. Independent researchers also documented eleven distinct vulnerabilities in the Tenda AC1200 W15Ev2.

Company

SHEN ZHEN TENDA TECHNOLOGY CO.,LTD [Confirmed] — IEEE MA-L registry

OUI blocks

8C:05:28, 0C:85:09, 50:DA:9E, 80:9F:E4, 8C:44:BB, 74:DD:F0 (6 MA-L blocks, one registrant) [Confirmed] — IEEE MA-L registry

Also seen on

IP cameras and mobile broadband devices [Likely] — made-in-china.com product listings

Security flag

CVE-2026-11405 (admin backdoor) and CVE-2026-22080 (credential exposure) are model/firmware-specific, not brand-wide [Confirmed] — thehackernews.com, CERT/CC-sourced advisories

Not to be confused with

Tenda Technology Co.,Ltd.Dongguan branch (11 MA-L blocks) and Tenda Technology Co., Ltd. (single OUI C8:3A:35) — separate IEEE org-string registrations [Confirmed] — IEEE MA-L registry

IEEE assignment

6 MA-L prefixes → SHEN ZHEN TENDA TECHNOLOGY CO.,LTD, registered Shenzhen, China [Confirmed] — IEEE MA-L registry. NOTE: IEEE publishes no assignment/registration date for these blocks; any third-party "date registered" is a database artifact, not an IEEE fact.

Registry / block size

MA-L (24-bit OUI) x6: 8C:05:28, 0C:85:09, 50:DA:9E, 80:9F:E4, 8C:44:BB, 74:DD:F0 [Confirmed] — IEEE MA-L registry. No MA-M (oui28/mam.csv) or MA-S (oui36/oui36.csv) block exists under any "TENDA" org string [Confirmed] — IEEE MA-M registry, the IEEE MA-S registry.

HQ / country

6-8 Floor, Tower E3, No. 1001, Zhongshanyuan Road, Nanshan District, Shenzhen, China 518052; CN [Confirmed] — IEEE MA-L registry

Company status

active [Confirmed] — tendacn.com

Device types

home/SOHO Wi-Fi routers, range extenders, powerline adapters, network switches, broadband CPE/gateways, IP cameras, mobile broadband devices [Confirmed] — tendacn.com/us/aboutus, made-in-china.com

Company substance

6 distinct MA-L blocks under one registrant/address, plus a corroborated company history and product line, clears the shell-abstention bar [Confirmed] — tendacn.com/us/aboutus, Simple Wikipedia, tendacn.com/profile

Security context

CVE-2026-11405 hidden admin backdoor in /bin/httpd on multiple Tenda firmware builds (disclosed by CERT/CC 2026-07-07, unpatched at disclosure); CVE-2026-22080 admin credentials sent as reversible Base64 on Tenda F3/N300 routers; independent research found 11 separate vulnerabilities in the AC1200 W15Ev2. Findings are scoped to specific CVEs/models, not all Tenda devices

[Confirmed] — thehackernews.com, rescana.com, socfortress.medium.com, github.com/advisories, boschko.ca

Related vendors / distinct registrations (NOT this entry)

"Tenda Technology Co.,Ltd.Dongguan branch" (Dongguan address, 11 MA-L blocks) and "Tenda Technology Co., Ltd." (single OUI C8:3A:35, different Shenzhen address) — separate IEEE org strings, separate vendor slugs if/when enriched [Confirmed] — IEEE MA-L registry, this site's own enrichment records

Analyst note

Six OUI blocks plus corroborated company and product context clear the shell-abstention bar for a real, ongoing vendor entry — but active CVEs make Tenda-identified devices worth flagging for a firmware-patch check, not just inventory classification.