CVE-2026-5042

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.
References
Link Resource
https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_153/README.md Exploit Third Party Advisory
https://vuldb.com/submit/779123 Third Party Advisory VDB Entry
https://vuldb.com/vuln/353965 Third Party Advisory VDB Entry
https://vuldb.com/vuln/353965/cti Permissions Required VDB Entry
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:belkin:f9k1122_firmware:1.00.33:*:*:*:*:*:*:*
cpe:2.3:h:belkin:f9k1122:-:*:*:*:*:*:*:*

History

17 Jun 2026, 10:58

Type Values Removed Values Added
Summary
  • (es) Una falla de seguridad ha sido descubierta en Belkin F9K1122 1.00.33. El elemento afectado es la función formCrossBandSwitch del archivo /goform/formCrossBandSwitch del componente Gestor de Parámetros. La manipulación del argumento webpage resulta en desbordamiento de búfer basado en pila. El ataque puede ser lanzado remotamente. El exploit ha sido publicado al público y puede ser usado para ataques. El proveedor fue contactado tempranamente sobre esta divulgación pero no respondió de ninguna manera.

30 Mar 2026, 18:58

Type Values Removed Values Added
CWE CWE-787
CPE cpe:2.3:o:belkin:f9k1122_firmware:1.00.33:*:*:*:*:*:*:*
cpe:2.3:h:belkin:f9k1122:-:*:*:*:*:*:*:*
First Time Belkin f9k1122
Belkin
Belkin f9k1122 Firmware
References () https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_153/README.md - () https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_153/README.md - Exploit, Third Party Advisory
References () https://vuldb.com/submit/779123 - () https://vuldb.com/submit/779123 - Third Party Advisory, VDB Entry
References () https://vuldb.com/vuln/353965 - () https://vuldb.com/vuln/353965 - Third Party Advisory, VDB Entry
References () https://vuldb.com/vuln/353965/cti - () https://vuldb.com/vuln/353965/cti - Permissions Required, VDB Entry

29 Mar 2026, 11:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-03-29 11:16

Updated : 2026-06-17 10:58


NVD link : CVE-2026-5042

Mitre link : CVE-2026-5042

CVE.ORG link : CVE-2026-5042


JSON object : View

Products Affected

belkin

  • f9k1122_firmware
  • f9k1122
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow

CWE-787

Out-of-bounds Write