CVE-2026-15543
Received Received - Intake

Buffer Overflow in Tenda CH22 Router Firmware

Vulnerability report for CVE-2026-15543, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-07-13

Last updated on: 2026-07-13

Assigner: VulDB

Description

A vulnerability was found in Tenda CH22 1.0.0.1. This impacts the function formCertListInfo of the file /goform/CertListInfo. The manipulation of the argument Name results in buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.

CVSS Scores

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Meta Information

Published
2026-07-13
Last Modified
2026-07-13
Generated
2026-07-13
AI Q&A
2026-07-13
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
tenda ch22 1.0.0.1

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-120 The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Attack-Flow Graph

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Executive Summary

This vulnerability exists in the Tenda CH22 device, specifically in the function formCertListInfo within the file /goform/CertListInfo. It is caused by improper handling of the argument 'Name', which leads to a buffer overflow condition. This flaw can be exploited remotely, allowing an attacker to potentially execute arbitrary code or cause a denial of service.

Impact Analysis

Exploitation of this vulnerability can lead to severe impacts including remote code execution or denial of service on the affected device. Because the attack can be launched remotely without user interaction, it poses a significant security risk. The high CVSS scores (up to 9.0 in version 2.0) reflect the critical nature of this vulnerability.

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