Tenda i3 1.0.0.6(2204) /goform/WifiMacFilterSet formWifiMacFilterSet index stack-based overflow
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.4 | $0-$5k | 0.17 |
Summary
A vulnerability identified as critical has been detected in Tenda i3 1.0.0.6(2204). This issue affects the function formWifiMacFilterSet of the file /goform/WifiMacFilterSet. This manipulation of the argument index causes stack-based overflow.
This vulnerability is handled as CVE-2026-3804. The attack can be initiated remotely. Additionally, an exploit exists.
Details
A vulnerability has been found in Tenda i3 1.0.0.6(2204) and classified as critical. Affected by this vulnerability is the function formWifiMacFilterSet of the file /goform/WifiMacFilterSet. The manipulation of the argument index with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.
It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-3804. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known.
It is possible to download the exploit at github.com. It is declared as proof-of-concept.
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-2026-10298). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.tenda.com.cn/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 8.8VulDB Meta Temp Score: 8.4
VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 8.8
CNA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Stack-based overflowCWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
03/08/2026 Advisory disclosed03/08/2026 VulDB entry created
03/09/2026 VulDB entry last update
Sources
Vendor: tenda.com.cnAdvisory: github.com
Status: Not defined
CVE: CVE-2026-3804 (🔒)
GCVE (CVE): GCVE-0-2026-3804
GCVE (VulDB): GCVE-100-349771
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 03/08/2026 13:44Updated: 03/09/2026 11:59
Changes: 03/08/2026 13:44 (57), 03/09/2026 08:14 (31), 03/09/2026 11:59 (1)
Complete: 🔍
Submitter: Svigo
Cache ID: 216:86E:103
Submit
Accepted
- Submit #768985: Tenda i3 V1.0.0.6(2204) Buffer Overflow (by Svigo)
Duplicate
- Submit #XXXXXX: Xxxxx Xx Xx.x.x.x(xxxx) Xxxxxx Xxxxxxxx (by Svigo)
- Submit #XXXXXX: Xxxxx Xx Xx.x.x.x(xxxx) Xxxxxx Xxxxxxxx (by m202572177)
- Submit #XXXXXX: Xxxxx Xx Xx.x.x.x(xxxx) Xxxxxx Xxxxxxxx (by m202572177)
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