Intelbras — 18 prefixes (MA-L)

Intelbras (full legal name Intelbras S.A. — Indústria de Telecomunicação Eletrônica Brasileira) is a large, 100% Brazilian-owned electronics and telecommunications manufacturer founded in the mid-1970s and headquartered in São José, Santa Catarina. It is publicly traded on the B3 exchange in São Paulo under the ticker INTB3. The company holds 18 IEEE MA-L (24-bit OUI) blocks, all registered to the org name "Intelbras" at the BR-101 km 210 plant in São José (postal code 88104-800); two minor address-string variants appear across the blocks but resolve to the same site. Intelbras ships a broad hardware line: residential and corporate routers, managed and unmanaged switches, Wi-Fi and 5G access points, outdoor radios, optical-fiber and passive networking products, PoE injectors, IP/CCTV cameras, DVRs and NVRs, alarm and access-control systems, intercoms, PBX/VoIP telephony, and solar energy products, sold primarily across Brazil and Latin America. For network operators, an Intelbras OUI most often points to consumer- or SMB-grade LATAM networking gear or CCTV/security hardware. The vendor carries a substantial and growing CVE record across routers, DVR/NVR appliances, IP cameras, and management software — including 2024–2025 disclosures for path traversal, cross-site scripting, unauthenticated endpoint exposure, and firmware access-control gaps — so treat these endpoints as a moderate-to-elevated vulnerability surface.

IEEE assignment

18 prefixes → "Intelbras", registered São José, Santa Catarina, BR [Confirmed] — IEEE MA-L. No MA-M (the IEEE MA-M registry) or MA-S (the IEEE MA-S registry) entries found.

Registry / block size

MA-L (24-bit OUI); holds 18 IEEE prefixes [Confirmed] — IEEE MA-L. NOTE: IEEE's public OUI data publishes NO assignment/registration date; any "date registered" on third-party tools (maclookup.app, netify.ai show 2006-11-29 through 2026-04-01) is a database artifact, not an IEEE fact.

HQ / country

BR-101, km 210, S/N°, São José, Santa Catarina, BR 88104-800 (registry address; two variant strings — "BR 101, km 210, S/N°" majority and "BR 101, KM 210" on prefixes D8:77:8B and 24:FD:0D — both the same São José site) [Confirmed] — IEEE MA-L

Full legal name

Intelbras S.A. — Indústria de Telecomunicação Eletrônica Brasileira [Confirmed] — stockanalysis.com (BVMF:INTB3 profile)

Company status

active; publicly traded on B3 (São Paulo) as INTB3; 100% Brazilian-owned [Confirmed] — stockanalysis.com

Founded

mid-1970s — 1976 commonly cited; some sources state incorporation in 1974 [Likely] — zoominfo.com, stockanalysis.com (sources disagree on the exact year)

Device types

routers (residential/corporate), managed/unmanaged switches, Wi-Fi & 5G APs, outdoor radios, optical fiber & passive networking, PoE injectors, IP/CCTV cameras, DVRs/NVRs, alarm & access-control systems, intercoms, PBX/VoIP telephony, solar inverters/panels [Confirmed] — intelbras.com/en/networks, /en/products (official site returned HTTP 403 on direct fetch; corroborated via official sitemap URLs + third-party business profiles)

Approx. revenue

~$785.9M USD (year of figure not specified in source) [Likely] — zoominfo.com (single-source business profile)

Strategic partnership

signed cooperation with FiberHome (China) in late 2023 to manufacture/sell FiberHome fiber-optic products in Brazil, targeting ISPs [Confirmed] — easybrazilinvesting.com

Sample prefixes (all MA-L, Intelbras)

00:1A:3F, 58:10:8C, 98:2A:0A, 80:8F:E8, 18:0D:2C, CC:81:30 [Confirmed] — IEEE MA-L / maclookup.app

Security context

documented CVE history across routers, cameras, DVRs, and InControl management software. Notable: WIN 300/WRN 342 routers exposed credentials in HTML source; RX1500/RX3000 access-control + XSS issues; CVE-2024-12896 (CVSS 6.9) & CVE-2024-12897 (CVSS 5.3) path traversal in VIP S3020 G2 cameras (Dec 2024); CVE-2024-3160 (disputed) in MHDX/HDCVI DVR series; InControl ≤ v2.21.56 unquoted-search-path + code injection (patched v2.21.58, Sept 2024); July 2025 full-disclosure CVE-2025-26064 XSS + unauthenticated log/config endpoint on current router models; reports of a claimed router 0-day (~30,000 devices). Pattern: web-UI weaknesses, unauthenticated endpoints, firmware access-control gaps typical of mid-tier LATAM gear.

[Confirmed] — cvedetails.com (vendor_id-16951), seclists.org/fulldisclosure/2025/Jul/14, GitHub advisories

Vendor site

https://www.intelbras.com/en/ [Confirmed] — intelbras.com/en/products

Analyst note

an Intelbras OUI most often indicates consumer/SMB LATAM networking gear or CCTV/security hardware; treat such endpoints as a moderate-to-elevated vulnerability surface and verify firmware patch level.