CVE-2026-2202
Tenda AC8 httpd WifiGuestSet fromSetWifiGusetBasic buffer overflow
- State
- Published
- Severity
- 8.7 High
- Published
- Feb 9, 2026
- Updated
- Feb 23, 2026
- Reserved
- Feb 7, 2026
Description
A vulnerability was detected in Tenda AC8 16.03.33.05. Affected is the function fromSetWifiGusetBasic of the file /goform/WifiGuestSet of the component httpd. The manipulation of the argument shareSpeed results in buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 8.8 High | 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 | VulDB |
| 3.0 | 8.8 High | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 9.0 High | AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
AC8Tenda |
|
References
- VDB-344905 | Tenda AC8 httpd WifiGuestSet fromSetWifiGusetBasic buffer overflowvdb-entrytechnical-description
- VDB-344905 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #750225 | Tenda AC8 V16.03.33.05 Denial of Servicethird-party-advisory
- https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/AC8/WifiGuestSet-sharespeed-bufferoverflow.mdrelated
- https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/AC8/WifiGuestSet-sharespeed-bufferoverflow.md#pocexploit
- https://www.tenda.com.cn/product
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