High severity8.8NVD Advisory· Published Mar 29, 2026· Updated Jun 17, 2026
CVE-2026-5042
CVE-2026-5042
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.
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Affected products
3cpe:2.3:o:belkin:f9k1122_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:belkin:f9k1122_firmware:*:*:*:*:*:*:*:*range: 1.00.33
- cpe:2.3:o:belkin:f9k1122_firmware:1.00.33:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
4- github.com/Litengzheng/vul_db/blob/main/Belkin/vul_153/README.mdnvdExploitThird Party Advisory
- vuldb.com/submit/779123nvdThird Party AdvisoryVDB Entry
- vuldb.com/vuln/353965nvdThird Party AdvisoryVDB Entry
- vuldb.com/vuln/353965/ctinvdPermissions RequiredVDB Entry
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