CVE-2026-3400— Tenda AC15 TextEditingConversion stack-based overflow
Quick assessment
Affected
Tenda AC15
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Tenda AC15是中国腾达（Tenda）公司的一款无线路由器。 Tenda AC15 15.13.07.13及之前版本存在安全漏洞，该漏洞源于文件/goform/TextEditingConversion对参数wpapsk_crypto2_4g的错误操作，可能导致栈缓冲区溢出。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-3400
Vulnerability Information
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Vulnerability Title
Tenda AC15 TextEditingConversion stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in Tenda AC15 up to 15.13.07.13. Affected by this issue is some unknown functionality of the file /goform/TextEditingConversion. The manipulation of the argument wpapsk_crypto2_4g results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Tenda AC15 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda AC15是中国腾达（Tenda）公司的一款无线路由器。 Tenda AC15 15.13.07.13及之前版本存在安全漏洞，该漏洞源于文件/goform/TextEditingConversion对参数wpapsk_crypto2_4g的错误操作，可能导致栈缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-3400
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Tenda · 2026-03-01 · 6 CVEs total
| CVE-2026-3399 | 8.8 HIGH | Tenda F453 httpd GstDhcpSetSer fromGstDhcpSetSer buffer overflow |
| CVE-2026-3398 | 8.8 HIGH | Tenda F453 httpd AdvSetWan fromAdvSetWan buffer overflow |
| CVE-2026-3380 | 8.8 HIGH | Tenda F453 L7Im frmL7ImForm buffer overflow |
| CVE-2026-3379 | 8.8 HIGH | Tenda F453 SetIpBind fromSetIpBind buffer overflow |
| CVE-2026-3378 | 8.8 HIGH | Tenda F453 qossetting fromqossetting buffer overflow |
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V. Comments for CVE-2026-3400
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