High 8.8Published Mar 11, 2026

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

Updated under an hour ago (Oct 26, 2026, 5:00 PM ET)

Does this affect you?

It affects Tenda i3. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Tenda i3

Exploited in the last 30 days

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.

CVSS: 8.8 HIGH (v3.1, CNA)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
Weakness (CWE): CWE-121, CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Analyzed
Record last updated: Mar 12, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Tenda i3 tenda:i3_firmware	1.0.0.6(2204)	CNA record
tenda i3_firmware tenda:i3_firmware	1.0.0.6(2204)	NVD

References

References

https://vuldb.com/?id.350406	vdb-entry, technical-description, third-party-advisory
https://vuldb.com/?ctiid.350406	signature, permissions-required, vdb-entry
https://vuldb.com/?submit.768996	third-party-advisory, vdb-entry
https://vuldb.com/?submit.768997	third-party-advisory, vdb-entry
https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-i3-formwrlSSIDset-index-buffer-overflow	related, exploit, third-party-advisory
https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-i3-formwrlSSIDset-go-buffer-overflow	exploit, third-party-advisory
https://www.tenda.com.cn/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.