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CVE-2026-5045— Tenda FH1201 Parameter WrlclientSet stack-based overflow

Quick assessment

Affected
Tenda FH1201
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tenda FH1201是中国腾达（Tenda）公司的一款无线路由器。 Tenda FH1201 1.2.0.14(408)版本存在安全漏洞，该漏洞源于对文件/goform/WrlclientSet中参数GO的操作不当，可能导致栈缓冲区溢出。

CVSS 8.8 · High EPSS 1.01% · P62
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I. Basic Information for CVE-2026-5045

Vulnerability Information
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Vulnerability Title
Tenda FH1201 Parameter WrlclientSet stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in Tenda FH1201 1.2.0.14(408). This impacts the function WrlclientSet of the file /goform/WrlclientSet of the component Parameter Handler. Performing a manipulation of the argument GO results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is now public 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
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Tenda FH1201 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda FH1201是中国腾达（Tenda）公司的一款无线路由器。 Tenda FH1201 1.2.0.14(408)版本存在安全漏洞，该漏洞源于对文件/goform/WrlclientSet中参数GO的操作不当，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

Vendor Product Affected Versions CPE Subscribe
Tenda FH1201 1.2.0.14(408) cpe:2.3:o:tenda:fh1201_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-5045

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 128264 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-5045

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Vendor Advisories for CVE-2026-5045 (1)

Other References for CVE-2026-5045 (1)

Same Patch Batch · Tenda · 2026-03-29 · 4 CVEs total

CVE-2026-5046 8.8 HIGH Tenda FH1201 Parameter WrlExtraSet formWrlExtraSet stack-based overflow
CVE-2026-5036 8.8 HIGH Tenda 4G06 Endpoint DhcpListClient fromDhcpListClient stack-based overflow
CVE-2026-5021 8.8 HIGH Tenda F453 httpd PPTPUserSetting fromPPTPUserSetting stack-based overflow

IV. Related Vulnerabilities

Same product: FH1201
Same vendor: Tenda
Same weakness: CWE-121

V. Comments for CVE-2026-5045

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