CVE-2026-3973 Details
Description
A vulnerability was determined in Tenda W3 1.0.0.3(2204). This affects the function formSetAutoPing of the file /goform/setAutoPing of the component POST Parameter Handler. This manipulation of the argument ping1/ping2 causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.
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 'formSetAutoPing' function within the '/goform/setAutoPing' endpoint, where the 'ping1' and 'ping2' POST parameters are processed. The vulnerability can be exploited remotely by sending a crafted request with an excessively long value for either 'ping1' or 'ping2', causing stack corruption that could lead to a crash and potentially allow for arbitrary code execution.
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-setautoping-ping1-buffer-overflow | [email protected] | ExploitThird Party Advisory |
| https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-setautoping-ping2-buffer-overflow | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/?ctiid.350408 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.350408 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.769173 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.769176 | [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] |