CVE-2026-4534— Tenda FH451 WrlExtraSet formWrlExtraSet stack-based overflow
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I. Basic Information for CVE-2026-4534
Vulnerability Information
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Vulnerability Title
Tenda FH451 WrlExtraSet formWrlExtraSet stack-based overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw has been found in Tenda FH451 1.0.0.9. This affects the function formWrlExtraSet of the file /goform/WrlExtraSet. This manipulation of the argument GO causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been published 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
栈缓冲区溢出
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版本存在安全漏洞，该漏洞源于对文件/goform/WrlExtraSet中函数formWrlExtraSet的参数GO的错误操作，可能导致基于栈的缓冲区溢出。
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-2026-4534
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- Submit #774342: Tenda FH451 V1.0.0.9 Stack-based Buffer Overflowthird-party-advisory
- CVE-2026-4534 Tenda FH451 WrlExtraSet formWrlExtraSet stack-based overflowvdb-entrytechnical-description
- https://nvd.nist.gov/vuln/detail/CVE-2026-4534
Same Patch Batch · Tenda · 2026-03-22 · 6 CVEs total
| CVE-2026-4553 | 8.8 HIGH | Tenda F453 Parameters Natlimit fromNatlimit stack-based overflow |
| CVE-2026-4552 | 8.8 HIGH | Tenda F453 Parameters VirtualSer fromVirtualSer memory corruption |
| CVE-2026-4551 | 8.8 HIGH | Tenda F453 Parameters SafeClientFilter fromSafeClientFilter memory corruption |
| CVE-2026-4535 | 8.8 HIGH | Tenda FH451 WrlclientSet stack-based overflow |
| CVE-2026-4554 | 6.3 MEDIUM | Tenda F453 WriteFacMac FormWriteFacMac privilege escalation |
IV. Related Vulnerabilities
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Same vendor: Tenda
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Tenda AC6 httpd telnet os command injection - CVE-2026-8138
Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based
Same weakness: CWE-121
- CVE-2026-8258
Squirrel sqstdstring.cpp validate_format stack-based overflo - CVE-2026-8234
EFM ipTIME A8004T WifiBasicSet formWifiBasicSet stack-based - CVE-2026-6665
PgBouncer buffer overflow in SCRAM - CVE-2026-41509
Integer underflow in crypto_sign_open() leads to buffer over - CVE-2026-8138
Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based
V. Comments for CVE-2026-4534
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