TVU Receiver / Transceiver: Authentication bypass in web management login
Summary
TVU Receiver and Transceiver devices with firmware before 7.9 accept a crafted POST request to the web login endpoint /tvu/Login with an empty or missing UserName parameter. A remote, unauthenticated attacker can obtain a valid administrative session cookie regardless of the password and gain full control of the web management interface. Exploitation requires only network access to the management interface.
Affected
- TVU Receiver / Transceiver firmware before 7.9
- Web management interface (POST /tvu/Login)
Fixed in
- Firmware 7.9 or later (according to the CODE WHITE remediation text; not yet confirmed by the vendor)
Workaround
- Block the web management port (8288 according to the vendor guide) from untrusted networks, including the internet
- Allow management access only via VPN or trusted internal networks
Exploitation
- No public proof of concept or exploit code known at time of research
- No evidence of exploitation in the wild; not listed in CISA KEV at time of research
- CISA SSVC: Exploitation none, Automatable yes, Technical Impact total
- EPSS 0.00564 (low)
Our recommendation
- Check whether any TVU receiver or transceiver is reachable from the internet, including port forwarding and cloud exposure
- Restrict the management interface to trusted networks or VPN now
- Contact TVU support for the official advisory and the firmware 7.9 download, then update all devices
- Review admin logins and device configuration for unexpected changes, and monitor the devices
- Also consider the related REST API issue CVE-2026-104076, which the port restriction also covers
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- CODE WHITE public vulnerability list code-white.com
- VulnCheck advisory www.vulncheck.com
- Rapid7 record via Vulners vulners.com
- Positive Technologies PT-2026-108187 vulners.com
- Strix CVE-2026-104075 www.strix.ai
- Strix CVE-2026-104076 www.strix.ai
- CVE record (CVEProject cvelistV5) raw.githubusercontent.com
- TVU setup guide (historical) www.tvunetworks.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 02:54.
Original description (NVD)
TVU Networks Receiver/Transceiver devices running firmware before version 7.9 contain an authentication bypass vulnerability in the web management login endpoint POST /tvu/Login that allows remote unauthenticated attackers to obtain an administrative session by submitting an empty or absent UserName parameter. Attackers can send a crafted HTTP request directly, bypassing client-side JavaScript validation, to receive a valid session cookie regardless of the password value and gain full administrative control of the device's web management interface.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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