JVN#88864366
Atsumi Electric DVRs contain hidden functionality issues
Overview
Multiple DVRs (Digital Video Recorders) provided by Atsumi Electric Co., Ltd. contain hidden functionality issues.
Products Affected
- ADX5004/ADX5008/ADX404 versions prior to Ver.10.8.237
- ADX3004/ADX3008/ADX3016/ADX204 versions prior to Ver.10.8.237
- ADX1004/ADX1008/ADX2016 all versions
Description
Multiple DVRs provided by Atsumi Electric Co., Ltd. contain multiple vulnerabilities listed below:
- Hidden Functionality (CWE-912)
- CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Base Score 8.6
- CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Base Score 7.2
- CVE-2026-97627
- Hidden Functionality (CWE-912)
- CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N Base Score 6.9
- CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N Base Score 4.9
- CVE-2026-100737
Impact
- A user who can log in to the product with the administrator privilege may execute arbitrary OS commands (CVE-2026-97627).
- A user who can log in to the product with the administrator privilege may upgrade the affected product to unauthorized firmware (CVE-2026-100737).
Solution
For ADX5004/ADX5008/ADX404/ADX3004/ADX3008/ADX3016/ADX204:
Update the firmware
Update the firmware to the latest version according to the information provided by the developer.
For ADX1004/ADX1008/ADX2016:
As several years have passed since the products were discontinued, no firmware update will be provided.
Apply the Workaround
The developer recommends using the producs without a network connection.
Stop using the products
If the product needs to be used with a network connection, consider using a successor product.
Vendor Status
| Vendor | Link |
| Atsumi Electric Co., Ltd. | Vulnerability in ADX Series DVRs Allowing Exploitation of Undisclosed Features (Text in Japanese) |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Credit
Cyber Threat Analysis Office, Cybersecurity Research Institute, National Institute of Information and Communications Technology (NICT) reported these vulnerabilities to Atsumi Electric Co., Ltd. and coordinated. After the coordination was completed, NICTER Analysis Team reported the case to JPCERT/CC to notify users of the solution through JVN.
Other Information
| JPCERT Alert |
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| JPCERT Reports |
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| CERT Advisory |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2026-97627 |
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CVE-2026-100737 |
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| JVN iPedia |
JVNDB-2026-000154 |