Vulnerability · Published Mar 12, 2026 · Assigned by VulDB
CVE-2026-3973Tenda W3 POST Parameter setAutoPing formSetAutoPing stack-based overflow
High 8.8
In plain English
A high-severity stack buffer overflow in W3 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.7%top 48.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
References
- VDB-350408 | Tenda W3 POST Parameter setAutoPing formSetAutoPing stack-based overflow vdb-entry, technical-description
- VDB-350408 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #769173 | Tenda W3 V1.0.0.3(2204) Buffer Overflow third-party-advisory
- Submit #769176 | Tenda W3 V1.0.0.3(2204) Buffer Overflow (Duplicate) third-party-advisory
- https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-setautoping-ping1-buffer-overflow related
- https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-setautoping-ping2-buffer-overflow exploit
- https://www.tenda.com.cn/ product