CVE-2026-5204 HIGH

CVE-2026-5204: Tenda CH22 Parameter webtypelibrary formWebTypeLibrary stack-based overflow

Vendor Tenda
Product CH22
Weakness CWE-121
Published March 31, 2026
Last update March 31, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

A vulnerability was determined in Tenda CH22 1.0.0.1. Affected is the function formWebTypeLibrary of the file /goform/webtypelibrary of the component Parameter Handler. This manipulation of the argument webSiteId causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized.

Key dates

02Disclosure timeline

March 31, 2026 CVE published
March 31, 2026 Record updated