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TI-2020-03423 Aliases CVE-2020-3923GHSA-jvq4-xpx6-3rjc

TONNET DVR – Broken Access Control

Priority MEDIUM 45CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

DVR firmware in TAT-76 and TAT-77 series of products, provided by TONNET, contain misconfigured authentication mechanism. Attackers can crack the default password and gain access to the system.

Why it matters now

EPSS 0.01679 77th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
TONNETDVRup to 20191216—No fix listedCNA
TONNETDVRup to 20200213—No fix listedCNA
  • DVR VendorTONNET Affected up to 20191216 Fixed in — No fix listed CNA
  • DVR VendorTONNET Affected up to 20200213 Fixed in — No fix listed CNA

CPE configurations NVD · 16

CPEVersionsRoleVendor
cpe:2.3:o:tonnet:tat-77104g1_firmware:*:*:*:*:*:*:*:*up to tat-77104g1_20190107VulnerableTONNET
cpe:2.3:h:tonnet:tat-77104g1:-:*:*:*:*:*:*:*not specified by NVDRunning onTONNET
cpe:2.3:o:tonnet:tat-70432n_firmware:*:*:*:*:*:*:*:*up to tat-77208g1_20181225VulnerableTONNET
cpe:2.3:h:tonnet:tat-70432n:-:*:*:*:*:*:*:*not specified by NVDRunning onTONNET
cpe:2.3:o:tonnet:tat-71416g1_firmware:*:*:*:*:*:*:*:*up to tat-71416g1_20181225VulnerableTONNET
cpe:2.3:h:tonnet:tat-71416g1:-:*:*:*:*:*:*:*not specified by NVDRunning onTONNET
cpe:2.3:o:tonnet:tat-71832g1_firmware:*:*:*:*:*:*:*:*up to tat-71832g1_20190510VulnerableTONNET
cpe:2.3:h:tonnet:tat-71832g1:-:*:*:*:*:*:*:*not specified by NVDRunning onTONNET
cpe:2.3:o:tonnet:tat-76104g3_firmware:*:*:*:*:*:*:*:*up to 20181220_76104g3VulnerableTONNET
cpe:2.3:h:tonnet:tat-76104g3:-:*:*:*:*:*:*:*not specified by NVDRunning onTONNET
  • cpe:2.3:o:tonnet:tat-77104g1_firmware:*:*:*:*:*:*:*:* Versions up to tat-77104g1_20190107 Vulnerable ·TONNET
  • cpe:2.3:h:tonnet:tat-77104g1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TONNET
  • cpe:2.3:o:tonnet:tat-70432n_firmware:*:*:*:*:*:*:*:* Versions up to tat-77208g1_20181225 Vulnerable ·TONNET
  • cpe:2.3:h:tonnet:tat-70432n:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TONNET
  • cpe:2.3:o:tonnet:tat-71416g1_firmware:*:*:*:*:*:*:*:* Versions up to tat-71416g1_20181225 Vulnerable ·TONNET
  • cpe:2.3:h:tonnet:tat-71416g1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TONNET
  • cpe:2.3:o:tonnet:tat-71832g1_firmware:*:*:*:*:*:*:*:* Versions up to tat-71832g1_20190510 Vulnerable ·TONNET
  • cpe:2.3:h:tonnet:tat-71832g1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TONNET
  • cpe:2.3:o:tonnet:tat-76104g3_firmware:*:*:*:*:*:*:*:* Versions up to 20181220_76104g3 Vulnerable ·TONNET
  • cpe:2.3:h:tonnet:tat-76104g3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TONNET
Show 6 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:tonnet:tat-76108g3_firmware:*:*:*:*:*:*:*:*up to 20181221_76208g3VulnerableTONNET
cpe:2.3:h:tonnet:tat-76108g3:-:*:*:*:*:*:*:*not specified by NVDRunning onTONNET
cpe:2.3:o:tonnet:tat-76116g3_firmware:*:*:*:*:*:*:*:*up to 20181221_76216g3VulnerableTONNET
cpe:2.3:h:tonnet:tat-76116g3:-:*:*:*:*:*:*:*not specified by NVDRunning onTONNET
cpe:2.3:o:tonnet:tat-76132g3_firmware:*:*:*:*:*:*:*:*up to tat-70832g3_20181221-1VulnerableTONNET
cpe:2.3:h:tonnet:tat-76132g3:-:*:*:*:*:*:*:*not specified by NVDRunning onTONNET
  • cpe:2.3:o:tonnet:tat-76108g3_firmware:*:*:*:*:*:*:*:* Versions up to 20181221_76208g3 Vulnerable ·TONNET
  • cpe:2.3:h:tonnet:tat-76108g3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TONNET
  • cpe:2.3:o:tonnet:tat-76116g3_firmware:*:*:*:*:*:*:*:* Versions up to 20181221_76216g3 Vulnerable ·TONNET
  • cpe:2.3:h:tonnet:tat-76116g3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TONNET
  • cpe:2.3:o:tonnet:tat-76132g3_firmware:*:*:*:*:*:*:*:* Versions up to tat-70832g3_20181221-1 Vulnerable ·TONNET
  • cpe:2.3:h:tonnet:tat-76132g3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TONNET

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-3923
  2. 2026-10-03 Alias added: GHSA-jvq4-xpx6-3rjc

References

Advisory 2

  • TI-2020-03424 TONNET DVR – Firmware Injection CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences