CVE-2026-5042— Belkin F9K1122 Parameter formCrossBandSwitch stack-based overflow
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-5042
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Belkin F9K1122 Parameter formCrossBandSwitch stack-based overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security flaw has been discovered in Belkin F9K1122 1.00.33. The affected element is the function formCrossBandSwitch of the file /goform/formCrossBandSwitch of the component Parameter Handler. The manipulation of the argument webpage results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. 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/formCrossBandSwitch中参数webpage的操作不当，可能导致栈缓冲区溢出。
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-2026-5042
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
Qwen3.6-35B-A3B · 7627 chars
Paid plan includes:
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month
III. Intelligence Information for CVE-2026-5042
请登录查看更多情报信息。
- Submit #779123: Belkin F9K1122 1.00.33 Stack-based Buffer Overflowthird-party-advisory
- CVE-2026-5042 Belkin F9K1122 Parameter formCrossBandSwitch stack-based overflowvdb-entrytechnical-description
- https://nvd.nist.gov/vuln/detail/CVE-2026-5042
Same Patch Batch · Belkin · 2026-03-29 · 3 CVEs total
| CVE-2026-5043 | 8.8 HIGH | Belkin F9K1122 Parameter formSetPassword stack-based overflow |
| CVE-2026-5044 | 8.8 HIGH | Belkin F9K1122 Setting formSetSystemSettings stack-based overflow |
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-2026-4566
Belkin F9K1122 formWISP5G stack-based overflow - 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-2026-5042
No comments yet