CVE-2026-3971: Tenda i3 wifiSSIDset formwrlSSIDset stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-03-12 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability has been found in Tenda i3 1.0.0.6(2204). Affected by this vulnerability is the function formwrlSSIDset of the file /goform/wifiSSIDset. The manipulation of the argument index/GO leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

Affected products

Tenda i3: 1.0.0.6(2204)

References

https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-i3-formwrlSSIDset-go-buffer-overflow
https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-i3-formwrlSSIDset-index-buffer-overflow
https://vuldb.com/?ctiid.350406
https://vuldb.com/?id.350406
https://vuldb.com/?submit.768996
https://vuldb.com/?submit.768997
https://www.tenda.com.cn/

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