Vulnerability · Published Apr 6, 2026 · Assigned by VulDB
CVE-2026-5609Tenda i12 Parameter wifiSSIDset formwrlSSIDset stack-based overflow
High 8.8
In plain English
A high-severity stack buffer overflow in i12 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 48.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A flaw has been found in Tenda i12 1.0.0.11(3862). Affected by this vulnerability is the function formwrlSSIDset of the file /goform/wifiSSIDset of the component Parameter Handler. This manipulation of the argument index/wl_radio causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been published and may be used.
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-355400 | Tenda i12 Parameter wifiSSIDset formwrlSSIDset stack-based overflow vdb-entry, technical-description
- VDB-355400 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #785337 | Tenda i12 V1.0.0.11(3862) Stack-based Buffer Overflow third-party-advisory
- https://github.com/Litengzheng/vuldb_new/blob/main/i12/vul_107/README.md exploit
- https://www.tenda.com.cn/ product