Vulnerability · Published Feb 9, 2026 · Assigned by VulDB
CVE-2026-2202Tenda AC8 httpd WifiGuestSet fromSetWifiGusetBasic buffer overflow
High 8.8
In plain English
A high-severity buffer overflow in AC8 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.8%top 42.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-120, 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-344905 | Tenda AC8 httpd WifiGuestSet fromSetWifiGusetBasic buffer overflow vdb-entry, technical-description
- VDB-344905 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #750225 | Tenda AC8 V16.03.33.05 Denial of Service third-party-advisory
- https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/AC8/WifiGuestSet-sharespeed-bufferoverflow.md related
- https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/AC8/WifiGuestSet-sharespeed-bufferoverflow.md#poc exploit
- https://www.tenda.com.cn/ product