CVE-2026-4566— Belkin F9K1122 formWISP5G stack-based overflow
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I. Basic Information for CVE-2026-4566
Vulnerability Information
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Vulnerability Title
Belkin F9K1122 formWISP5G stack-based overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw has been found in Belkin F9K1122 1.00.33. The affected element is the function formWISP5G of the file /goform/formWISP5G. Executing a manipulation of the argument webpage can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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
Belkin F9K1122 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Belkin F9K1122是加拿大Belkin公司的一款WiFi信号扩展器。 Belkin F9K1122 1.00.33版本存在安全漏洞，该漏洞源于对文件/goform/formWISP5G中formWISP5G函数的webpage参数操作不当，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-2026-4566
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- Submit #775132: Belkin F9K1122 1.00.33 Stack-based Buffer Overflowthird-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-4566
IV. Related Vulnerabilities
Same product: F9K1122
- CVE-2026-5608
Belkin F9K1122 formWlanSetup stack-based overflow - CVE-2026-5044
Belkin F9K1122 Setting formSetSystemSettings stack-based ove - CVE-2026-5043
Belkin F9K1122 Parameter formSetPassword stack-based overflo - CVE-2026-5042
Belkin F9K1122 Parameter formCrossBandSwitch stack-based ove - CVE-2026-4167
Belkin F9K1122 formReboot stack-based overflow
Same vendor: Belkin
- CVE-2026-5629
Belkin F9K1015 formSetFirewall stack-based overflow - CVE-2026-5628
Belkin F9K1015 Setting formSetSystemSettings stack-based ove - CVE-2026-5614
Belkin F9K1015 formSetPassword stack-based overflow - CVE-2026-5613
Belkin F9K1015 formReboot stack-based overflow - CVE-2026-5612
Belkin F9K1015 formWlEncrypt stack-based overflow
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-2026-4566
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