CVE-2021-3017
The web interface on Intelbras WIN 300 and WRN 342 devices through 2021-01-04 allows remote...
The web interface on Intelbras WIN 300 and WRN 342 devices through 2021-01-04 allows remote attackers to discover credentials by reading the def_wirelesspassword line in the HTML source code.
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
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
The web interface on Intelbras WIN 300 and WRN 342 devices through 2021-01-04 allows remote attackers to discover credentials by reading the def_wirelesspassword line in the HTML source code.
- Record
CVE-2021-3017- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
The web interface on Intelbras WIN 300 and WRN 342 devices through 2021-01-04 allows remote attackers to discover credentials by reading the def_wirelesspassword line in the HTML source code.
- Record
CVE-2021-3017- Updated
- 2026-11-02
EUVDEUVD-2021-26370 No score
The web interface on Intelbras WIN 300 and WRN 342 devices through 2021-01-04 allows remote attackers to discover credentials by reading the def_wirelesspassword line in the HTML source code.
- Record
EUVD-2021-26370- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vvf7-v2jp-v5fv No score
The web interface on Intelbras WIN 300 and WRN 342 devices through 2021-01-04 allows remote...
The web interface on Intelbras WIN 300 and WRN 342 devices through 2021-01-04 allows remote attackers to discover credentials by reading the def_wirelesspassword line in the HTML source code.
- Record
GHSA-vvf7-v2jp-v5fv- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Nuclei | Intelbras WIN 300/WRN 342 - Credentials Disclosure |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, Nuclei, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-3017 is a high vulnerability (CVSS 7.5) in Intelbras Win 300 Firmware, published April 14, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 63.0%, the 99th percentile. No source names a fixed version.