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CVE-2026-19792— Tenda G0 httpd web management interface module setPortMapping buffer overflow

Quick assessment

Affected
Tenda G0
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 g0是中国Tenda公司的一款网络服务器设备。 Tenda g0 20260625及之前版本存在缓冲区错误漏洞，该漏洞源于httpd web管理接口中/goform/module文件的setPortMapping函数对portMappingServer/porMappingtInternal/portMappingExternal参数操作不当，可能导致缓冲区溢出，攻击者可远程利用该漏洞。

CVSS 8.8 · High EPSS 0.85% · P57

Affected Version Matrix 1

VendorProduct Version RangeStatus
Tenda G0 20260625 affected
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I. Basic Information for CVE-2026-19792

Vulnerability Information
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Vulnerability Title
Tenda G0 httpd web management interface module setPortMapping buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in Tenda G0 up to 20260625. Impacted is the function setPortMapping of the file /goform/module of the component httpd web management interface. Performing a manipulation of the argument portMappingServer/porMappingtInternal/portMappingExternal results in buffer overflow. The attack is possible to be carried out 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
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 g0 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda g0是中国Tenda公司的一款网络服务器设备。 Tenda g0 20260625及之前版本存在缓冲区错误漏洞，该漏洞源于httpd web管理接口中/goform/module文件的setPortMapping函数对portMappingServer/porMappingtInternal/portMappingExternal参数操作不当，可能导致缓冲区溢出，攻击者可远程利用该漏洞。
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 G0 20260625 cpe:2.3:h:tenda:g0:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19792

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8468 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-2026-19792

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Proof of Concept for CVE-2026-19792 (1)

Other References for CVE-2026-19792 (3)

Same Patch Batch · Tenda · 2026-08-14 · 9 CVEs total

CVE-2026-19788 8.8 HIGH Tenda AC1206 httpd web management interface SetOnlineDevName set_device_name stack-based o
CVE-2026-19789 8.8 HIGH Tenda AC1206 httpd web management interface WifiGuestSet set_wl_guest_iplist stack-based o
CVE-2026-19790 8.8 HIGH Tenda G0 httpd Web Management module formSetPortMirror stack-based overflow
CVE-2026-19791 8.8 HIGH Tenda G0 httpd web management interface module addStaticRoute stack-based overflow
CVE-2026-19821 8.8 HIGH Tenda AC12 httpd web management interface SetSysAutoRebbotCfg formSetRebootTimer buffer ov
CVE-2026-19822 8.8 HIGH Tenda W20E QoS Edit editQos lstAdd stack-based overflow
CVE-2026-19823 8.8 HIGH Tenda W20E QoS Rule Deletion delQos formQOSRuleDel stack-based overflow
CVE-2026-19824 8.8 HIGH Tenda W20E addIpMacBind ipMacBindListStore stack-based overflow

IV. Related Vulnerabilities

Same product: G0
Same vendor: Tenda
Same weakness: CWE-120

V. Comments for CVE-2026-19792

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