# CVE-2026-5204

## Summary

- **CVE ID:** CVE-2026-5204
- **Severity:** HIGH
- **CVSS Score:** 9 (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)
- **CWE:** CWE-121, CWE-119
- **Published:** Mar 31, 2026
- **Last Modified:** Mar 31, 2026

## Description

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.

## Affected Products

- Tenda — CH22 (1.0.0.1)

## References

- [CNA](https://vuldb.com/vuln/354332)
- [CNA](https://vuldb.com/vuln/354332/cti)
- [CNA](https://vuldb.com/submit/780209)
- [CNA](https://github.com/Litengzheng/vuldb_new/blob/main/CH22/vul_49/README.md)
- [CNA](https://www.tenda.com.cn/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 2.48%
- **EPSS Percentile:** 83.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._