Authentication bypass in TVU Networks Receiver/Transceiver login endpoint
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-288.
Summary
TVU Networks Receiver/Transceiver devices running firmware before version 7.9 contain an authentication bypass in the web management login endpoint POST /tvu/Login. A remote unauthenticated attacker who submits an empty or absent UserName parameter receives a valid session cookie regardless of the password, gaining full administrative control of the web management interface. The flaw is classified as CWE-288.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| TVU Networks | TVU Receiver / Transceiver | before 7.9 | 7.9 | Patch available | CNA |
- TVU Receiver / Transceiver VendorTVU Networks Affected before 7.9 Fixed in 7.9 Patch available CNA
Remediation
Update TVU Receiver / Transceiver firmware to version 7.9 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA TVU Receiver / Transceiver (TVU Networks) Fixed in 7.9
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
TVU Receiver / Transceiver 7.9
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2026-69730 Missing authentication in TVU Networks Receiver/Transceiver REST APIPriority MEDIUM 48
Timeline
- 2026-10-09 Threatist record created from CVE-2026-104075
- 2026-10-14 CISA SSVC decision points changed
References
Advisory 1
More TVU Networks vulnerabilities
- TI-2026-69730 Missing authentication in TVU Networks Receiver/Transceiver REST API CVSS 4.0CRITICAL 9.3
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences