CVE-2026-2202

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.

CVSS v3 8.8 HIGH
CVSS v2.0 9.0 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/AC8/WifiGuestSet-sharespeed-bufferoverflow.md	Exploit Third Party Advisory
https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/AC8/WifiGuestSet-sharespeed-bufferoverflow.md#poc	Exploit Third Party Advisory
https://vuldb.com/?ctiid.344905	Permissions Required VDB Entry
https://vuldb.com/?id.344905	Third Party Advisory VDB Entry
https://vuldb.com/?submit.750225	Third Party Advisory VDB Entry
https://www.tenda.com.cn/	Product

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:ac8_firmware:16.03.33.05:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac8:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-09 03:16

Updated : 2026-02-10 15:07

NVD link : CVE-2026-2202

Mitre link : CVE-2026-2202

CVE.ORG link : CVE-2026-2202

JSON object : View

Products Affected

tenda

ac8_firmware
ac8

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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