CVE-2016-4821
I-O DATA DEVICE ETX-R devices allow remote attackers to cause a denial of service (web-server...
I-O DATA DEVICE ETX-R devices allow remote attackers to cause a denial of service (web-server crash) via unspecified vectors.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
NVD Score used
I-O DATA DEVICE ETX-R devices allow remote attackers to cause a denial of service (web-server crash) via unspecified vectors.
- Record
CVE-2016-4821- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
I-O DATA DEVICE ETX-R devices allow remote attackers to cause a denial of service (web-server crash) via unspecified vectors.
- Record
CVE-2016-4821- Updated
- 2026-11-02
EUVDEUVD-2016-5803 No score
I-O DATA DEVICE ETX-R devices allow remote attackers to cause a denial of service (web-server crash) via unspecified vectors.
- Record
EUVD-2016-5803- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2w2f-8wjw-xc2h
I-O DATA DEVICE ETX-R devices allow remote attackers to cause a denial of service (web-server...
I-O DATA DEVICE ETX-R devices allow remote attackers to cause a denial of service (web-server crash) via unspecified vectors.
- Record
GHSA-2w2f-8wjw-xc2h- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-4821 is a medium vulnerability (CVSS 5.3) in Iodata Etx-r Firmware, published June 19, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.60%, the 75th percentile. No source names a fixed version.