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CVE-2026-11556— Tenda F451 Web Management WriteFacMac formWriteFacMac os command injection

CVSS 8.8 · High EPSS 1.61% · P73

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProductVersion RangeStatus
TendaF4511.0.0.7affected
1.0.0.9affected
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I. Basic Information for CVE-2026-11556

Vulnerability Information
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Vulnerability Title
Tenda F451 Web Management WriteFacMac formWriteFacMac os command injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security flaw has been discovered in Tenda F451 1.0.0.7/1.0.0.9. Impacted is the function formWriteFacMac of the file /goform/WriteFacMac of the component Web Management Interface. Performing a manipulation of the argument mac results in os command injection. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Tenda F451 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda F451是中国腾达（Tenda）公司的一款无线路由器。 Tenda F451 1.0.0.7版本和1.0.0.9版本存在命令注入漏洞，该漏洞源于Web Management Interface组件中/goform/WriteFacMac文件的formWriteFacMac函数对参数mac操作不当，可能导致OS命令注入。攻击者可远程发起攻击。
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

VendorProductAffected VersionsCPESubscribe
TendaF451 1.0.0.7 cpe:2.3:o:tenda:f451_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-11556

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 5419 chars
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III. Intelligence Information for CVE-2026-11556

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Proof of Concept for CVE-2026-11556 (1)

Same Patch Batch · Tenda · 2026-06-08 · 12 CVEs total

CVE-2026-114999.8 CRITICALTenda HG7HG9/HG10 formDOMAINBLK stack-based overflow
CVE-2026-115578.8 HIGHTenda F451 Web Management Natlimit fromNatlimit stack-based overflow
CVE-2026-115538.8 HIGHTenda HG7HG9/HG10 formPPPEdit stack-based overflow
CVE-2026-115288.8 HIGHTenda AC18 Web Management getRebootStatus sub_45304 stack-based overflow
CVE-2026-115248.8 HIGHTenda W20E Web Management modifyWifiFilterRules stack-based overflow
CVE-2026-115238.8 HIGHTenda W20E Web Management PortalAuth formPortalAuth stack-based overflow
CVE-2026-115228.8 HIGHTenda W20E setPortMirror formSetPortMirror stack-based overflow
CVE-2026-115048.8 HIGHTenda CX12L Wi-Fi Schedule Configuration Endpoint openSchedWifi setSchedWifi stack-based o
CVE-2026-115038.8 HIGHTenda CX12L Wi-Fi Configuration Endpoint fast_setting_wifi_set form_fast_setting_wifi_set
CVE-2026-114988.8 HIGHTenda HG7HG9/HG10 Web Management voip_other_set asp_voip_OtherSet stack-based overflow
CVE-2026-114935.0 MEDIUMTenda AC15 Samba smb.conf weak password

IV. Related Vulnerabilities

Same product: F451
Same vendor: Tenda
Same weakness: CWE-78

V. Comments for CVE-2026-11556

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