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 the IEEE 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.

IEEE assignment

6 MA-L prefixes → SHEN ZHEN TENDA TECHNOLOGY CO.,LTD, registered Shenzhen, China [Confirmed] — IEEE the 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 the 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 the 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 the 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 the 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.