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CVE-2026-9430— Tenda F1202 GstDhcpSetSerof formGstDhcpSetSer stack-based overflow

Quick assessment

Affected
Tenda F1202
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 F1202是中国腾达（Tenda）公司的一款采用第五代技术的双频 Wi-Fi 路由器。 Tenda F1202 1.2.0.20(408)版本存在安全漏洞，该漏洞源于对文件/goform/GstDhcpSetSerof中函数formGstDhcpSetSer的参数dips的操作，可能导致栈缓冲区溢出。

CVSS 8.8 · High EPSS 0.44% · P37

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Tenda F1202 1.2.0.20(408) affected
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I. Basic Information for CVE-2026-9430

Vulnerability Information
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Vulnerability Title
Tenda F1202 GstDhcpSetSerof formGstDhcpSetSer stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in Tenda F1202 1.2.0.20(408). Affected by this issue is the function formGstDhcpSetSer of the file /goform/GstDhcpSetSerof. Executing a manipulation of the argument dips can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized.
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 F1202 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda F1202是中国腾达（Tenda）公司的一款采用第五代技术的双频 Wi-Fi 路由器。 Tenda F1202 1.2.0.20(408)版本存在安全漏洞，该漏洞源于对文件/goform/GstDhcpSetSerof中函数formGstDhcpSetSer的参数dips的操作，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

Vendor Product Affected Versions CPE Subscribe
Tenda F1202 1.2.0.20(408) cpe:2.3:o:tenda:f1202_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9430

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 7315 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-2026-9430

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Other References for CVE-2026-9430 (1)

Same Patch Batch · Tenda · 2026-05-25 · 4 CVEs total

CVE-2026-9431 8.8 HIGH Tenda F1202 PptpUserAdd fromPptpUserAdd stack-based overflow
CVE-2026-9429 8.8 HIGH Tenda F1202 WrlExtraSet formWrlExtraSet stack-based overflow
CVE-2026-9428 8.8 HIGH Tenda F1202 PPTPUserSetting fromPPTPUserSetting stack-based overflow

IV. Related Vulnerabilities

Same product: F1202
Same vendor: Tenda
Same weakness: CWE-121

V. Comments for CVE-2026-9430

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