Monitor vulnerabilities like this one.
Sign up free to get alerted when software you use is affected.
7.4
Tenda i3 Router: Remote Command Execution from Malicious Input
CVE-2026-3802
Summary
A bug in the Tenda i3 router's command handling system can allow an attacker to remotely execute commands on the device. This could potentially allow an attacker to gain control of the router. To protect your network, update the router's firmware to the latest version available.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| tenda | i3_firmware | 1.0.0.6\(2204\) | – |
Original title
A vulnerability was determined in Tenda i3 1.0.0.6(2204). Affected by this issue is the function formexeCommand of the file /goform/exeCommand. Executing a manipulation of the argument cmdinput can...
Original description
A vulnerability was determined in Tenda i3 1.0.0.6(2204). Affected by this issue is the function formexeCommand of the file /goform/exeCommand. Executing a manipulation of the argument cmdinput can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.
nvd CVSS2.0
9.0
nvd CVSS3.1
8.8
nvd CVSS4.0
7.4
Vulnerability type
CWE-119
Buffer Overflow
CWE-121
Stack-based Buffer Overflow
Published: 9 Mar 2026 · Updated: 13 Mar 2026 · First seen: 9 Mar 2026