Edimax Wireless Router N300 BR-6428NS_v4 /bin/webs setWAN command injection
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.3 | $0-$5k | 0.00 |
Summary
A vulnerability described as critical has been identified in Edimax Wireless Router N300 BR-6428NS_v4. This issue affects the function setWAN of the file /bin/webs. Executing a manipulation can lead to command injection.
The identification of this vulnerability is CVE-2023-31986. There is no exploit available.
Details
A vulnerability classified as critical was found in Edimax Wireless Router N300 BR-6428NS_v4 (Router Operating System). This vulnerability affects the function setWAN of the file /bin/webs. The manipulation with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
A Command Injection vulnerability in Edimax Wireless Router N300 Firmware BR-6428NS_v4 allows attacker to execute arbitrary code via the setWAN function in /bin/webs without any limitations.
The weakness was shared 05/15/2023. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-31986 since 04/29/2023. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-36275). VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
Type
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.4VulDB Meta Temp Score: 8.3
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CNA Base Score: 9.8
CNA Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Command injectionCWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
04/29/2023 🔍05/15/2023 🔍
05/15/2023 🔍
12/30/2025 🔍
Sources
Advisory: github.comStatus: Not defined
CVE: CVE-2023-31986 (🔍)
GCVE (CVE): GCVE-0-2023-31986
GCVE (VulDB): GCVE-100-229024
EUVD: 🔍
Entry
Created: 05/15/2023 15:33Updated: 12/30/2025 06:57
Changes: 05/15/2023 15:33 (40), 06/08/2023 22:06 (11), 01/23/2025 21:45 (26), 12/30/2025 06:57 (1)
Complete: 🔍
Cache ID: 216::103
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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