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CVE-2026-7054— Tenda F456 httpd PPTPDClient fromPptpUserAdd buffer overflow

Quick assessment

Affected
Tenda F456
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 F456是中国腾达（Tenda）公司的一款无线路由器。 Tenda F456 1.0.0.5版本存在缓冲区错误漏洞，该漏洞源于httpd组件中/goform/PPTPDClient文件的fromPptpUserAdd函数对opttype/usernamewith参数操作不当，可能导致缓冲区溢出。

CVSS 8.8 · High EPSS 0.66% · P49

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-7054

Vulnerability Information
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Vulnerability Title
Tenda F456 httpd PPTPDClient fromPptpUserAdd buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in Tenda F456 1.0.0.5. This vulnerability affects the function fromPptpUserAdd of the file /goform/PPTPDClient of the component httpd. Executing a manipulation of the argument opttype/usernamewith can lead to buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could 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 F456 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda F456是中国腾达（Tenda）公司的一款无线路由器。 Tenda F456 1.0.0.5版本存在缓冲区错误漏洞，该漏洞源于httpd组件中/goform/PPTPDClient文件的fromPptpUserAdd函数对opttype/usernamewith参数操作不当，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 F456 1.0.0.5 -

II. Public POCs for CVE-2026-7054

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III. Intelligence Information for CVE-2026-7054

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Vendor Advisories for CVE-2026-7054 (1)

Other References for CVE-2026-7054 (1)

Same Patch Batch · Tenda · 2026-04-26 · 14 CVEs total

CVE-2026-7057 8.8 HIGH Tenda F456 httpd setcfm buffer overflow
CVE-2026-7056 8.8 HIGH Tenda F456 httpd SafeUrlFilter fromSafeUrlFilter buffer overflow
CVE-2026-7055 8.8 HIGH Tenda F456 httpd VirtualSer fromVirtualSer buffer overflow
CVE-2026-7053 8.8 HIGH Tenda F456 httpd L7Prot frmL7ProtForm buffer overflow
CVE-2026-7035 8.8 HIGH Tenda FH1202 httpd WrlclientSet fromWrlclientSet stack-based overflow
CVE-2026-7034 8.8 HIGH Tenda FH1202 httpd WrlExtraSet stack-based overflow
CVE-2026-7033 8.8 HIGH Tenda F456 SafeClientFilter fromSafeClientFilter buffer overflow
CVE-2026-7032 8.8 HIGH Tenda F456 SafeEmailFilter buffer overflow
CVE-2026-7031 8.8 HIGH Tenda F456 SafeMacFilter fromSafeMacFilter buffer overflow
CVE-2026-7030 8.8 HIGH Tenda F456 RouteStatic fromRouteStatic buffer overflow
CVE-2026-7029 8.8 HIGH Tenda F456 addressNat fromaddressNat buffer overflow
CVE-2026-7019 8.8 HIGH Tenda F456 P2pListFilter fromP2pListFilter buffer overflow
CVE-2026-7036 7.3 HIGH Tenda i9 HTTP R7WebsSecurityHandlerfunction path traversal

IV. Related Vulnerabilities

Same product: F456
Same vendor: Tenda
Same weakness: CWE-120

V. Comments for CVE-2026-7054

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