CVE-2026-3976 Details
Description
A weakness has been identified in Tenda W3 1.0.0.3(2204). Impacted is the function formWifiMacFilterSet of the file /goform/WifiMacFilterSet of the component POST Parameter Handler. Executing a manipulation of the argument index/GO can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks.
A stack-based buffer overflow vulnerability has been identified in the Tenda W3 router, specifically in version 1.0.0.3(2204). The issue arises in the formWifiMacFilterSet function within the WifiMacFilterSet POST Parameter Handler. The vulnerability is located in the /goform/WifiMacFilterSet file, where the index/GO POST parameters are manipulated, leading to a buffer overflow. This vulnerability can be exploited remotely, and a public exploit is available.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 12, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-formWifiMacFilterSet-go-buffer-overflow | [email protected] | ExploitThird Party Advisory |
| https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-formWifiMacFilterSet-index-buffer-overflow | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/?ctiid.350411 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.350411 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.769179 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.769180 | [email protected] | Third Party AdvisoryVDB Entry |
| https://www.tenda.com.cn/ | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-121 | Stack-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| tenda w3 firmware | 1.0.0.3(2204) |
CPE
Remediation
| |
| tenda w3 | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 2, 2026 | Initial Analysis | [email protected] |
| Mar 12, 2026 | New CVE Received | [email protected] |