CVE-2026-2911— Tenda FH451 GstDhcpSetSer buffer overflow
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I. Basic Information for CVE-2026-2911
Vulnerability Information
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Vulnerability Title
Tenda FH451 GstDhcpSetSer buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been found in Tenda FH451 up to 1.0.0.9. This issue affects some unknown processing of the file /goform/GstDhcpSetSer. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
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
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Tenda FH451 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda FH451是中国腾达（Tenda）公司的一款路由器。 Tenda FH451 1.0.0.9及之前版本存在安全漏洞，该漏洞源于对文件/goform/GstDhcpSetSer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-2026-2911
| # | POC Description | Source Link | Shenlong Link |
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Same Patch Batch · Tenda · 2026-02-22 · 8 CVEs total
| CVE-2026-2910 | 8.8 HIGH | Tenda HG9 formPing6 stack-based overflow |
| CVE-2026-2909 | 8.8 HIGH | Tenda HG9 Diagnostic Ping Endpoint formPing stack-based overflow |
| CVE-2026-2908 | 8.8 HIGH | Tenda HG9 Loopback Detection Configuration Endpoint formLoopBack stack-based overflow |
| CVE-2026-2907 | 8.8 HIGH | Tenda HG9 GPON Configuration Endpoint formgponConf stack-based overflow |
| CVE-2026-2906 | 8.8 HIGH | Tenda HG9 Samba Configuration Endpoint formSamba stack-based overflow |
| CVE-2026-2905 | 8.8 HIGH | Tenda HG9 Wireless Configuration Endpoint formWlanSetup stack-based overflow |
| CVE-2026-2930 | 6.3 MEDIUM | Tenda A18 Httpd Service UploadCfg webCgiGetUploadFile stack-based overflow |
IV. Related Vulnerabilities
Same product: FH451
- CVE-2026-4535
Tenda FH451 WrlclientSet stack-based overflow - CVE-2026-4534
Tenda FH451 WrlExtraSet formWrlExtraSet stack-based overflow - CVE-2026-3679
Tenda FH451 QuickIndex formQuickIndex stack-based overflow - CVE-2026-3678
Tenda FH451 AdvSetWan sub_3C434 stack-based overflow - CVE-2026-3677
Tenda FH451 setcfm fromSetCfm stack-based overflow
Same vendor: Tenda
- CVE-2026-8265
Tenda AC6 httpd getLogFile get_log_file os command injection - CVE-2026-8264
Tenda AC6 httpd WifiApScan formWifiApScan os command injecti - CVE-2026-8263
Tenda AC6 httpd WifiExtraSet fromSetWirelessRepeat os comman - CVE-2026-8259
Tenda AC6 httpd telnet os command injection - CVE-2026-8138
Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based
Same weakness: CWE-120
- CVE-2026-8260
D-Link DCS-935L HNAP Service hnap_service SetDeviceSettings - CVE-2026-8137
Totolink X5000R formDdns sub_458E40 buffer overflow - CVE-2026-6691
MongoDB C Driver Cyrus SASL Canonicalization Buffer Overflow - CVE-2026-7857
D-Link DI-8100 CGI user_group.asp sprintf buffer overflow - CVE-2026-7856
D-Link DI-8100 Web Management url_member.asp buffer overflow
V. Comments for CVE-2026-2911
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