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CVE-2026-6632— Tenda F451 httpd SafeClientFilter fromSafeClientFilter buffer overflow

Quick assessment

Affected
Tenda F451
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tenda F451是中国腾达（Tenda）公司的一款无线路由器。 Tenda F451 1.0.0.7_cn_svn7958版本存在安全漏洞，该漏洞源于对文件/goform/SafeClientFilter中httpd组件fromSafeClientFilter函数的参数menufacturer/Go操作不当，可能导致缓冲区溢出。

CVSS 8.8 · High EPSS 0.79% · P55

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-6632

Vulnerability Information
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Vulnerability Title
Tenda F451 httpd SafeClientFilter fromSafeClientFilter buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in Tenda F451 1.0.0.7_cn_svn7958. The affected element is the function fromSafeClientFilter of the file /goform/SafeClientFilter of the component httpd. The manipulation of the argument menufacturer/Go leads to buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might 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
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 F451 安全漏洞
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_cn_svn7958版本存在安全漏洞，该漏洞源于对文件/goform/SafeClientFilter中httpd组件fromSafeClientFilter函数的参数menufacturer/Go操作不当，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

Vendor Product Affected Versions CPE Subscribe
Tenda F451 1.0.0.7_cn_svn7958 cpe:2.3:o:tenda:f451_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-6632

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III. Intelligence Information for CVE-2026-6632

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Vendor Advisories for CVE-2026-6632 (1)

Same Patch Batch · Tenda · 2026-04-20 · 3 CVEs total

CVE-2026-6630 8.8 HIGH Tenda F451 httpd GstDhcpSetSer fromGstDhcpSetSer buffer overflow
CVE-2026-6631 8.8 HIGH Tenda F451 httpd webExcptypemanFilter fromwebExcptypemanFilter buffer overflow

IV. Related Vulnerabilities

Same product: F451
Same vendor: Tenda
Same weakness: CWE-120

V. Comments for CVE-2026-6632

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