CVE-2026-5042
Belkin F9K1122 Parameter formCrossBandSwitch stack-based overflow
- State
- Published
- Severity
- 8.7 High
- Published
- Mar 29, 2026
- Updated
- Mar 30, 2026
- Reserved
- Mar 27, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 8.8 High | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 9.0 High | AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
F9K1122Belkin |
|
References
- VDB-353965 | Belkin F9K1122 Parameter formCrossBandSwitch stack-based overflowvdb-entrytechnical-description
- VDB-353965 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #779123 | Belkin F9K1122 1.00.33 Stack-based Buffer Overflowthird-party-advisory
- https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_153/README.mdexploit
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