CVE-2026-1420— Tenda AC23 WifiExtraSet buffer overflow
Quick assessment
Affected
Tenda AC23
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 AC23是中国腾达（Tenda）公司的一款双频千兆无线路由器。 Tenda AC23 16.03.07.52版本存在安全漏洞，该漏洞源于对文件/goform/WifiExtraSet中参数wpapsk_crypto的错误操作，可能导致缓冲区溢出。
Possible ATT&CK Techniques 3 AI
T1059 · Command and Scripting Interpreter T1203 · Exploitation for Client Execution T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-1420
Vulnerability Information
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Vulnerability Title
Tenda AC23 WifiExtraSet buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw has been found in Tenda AC23 16.03.07.52. This impacts an unknown function of the file /goform/WifiExtraSet. This manipulation of the argument wpapsk_crypto causes buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used.
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
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Tenda AC23 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda AC23是中国腾达（Tenda）公司的一款双频千兆无线路由器。 Tenda AC23 16.03.07.52版本存在安全漏洞，该漏洞源于对文件/goform/WifiExtraSet中参数wpapsk_crypto的错误操作，可能导致缓冲区溢出。
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-2026-1420
| # | POC Description | Source Link | Shenlong Link |
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Proof of Concept for CVE-2026-1420 (2)
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V. Comments for CVE-2026-1420
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