What’s Vulnerable › Vulnerabilities

CVE-2026-5042: Belkin F9K1122 Parameter formCrossBandSwitch stack-based overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-29 · updated 2026-06-17
• Weakness: CWE-119

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.

Affected products

• Belkin F9K1122: 1.00.33

References

• https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_153/README.md
• https://vuldb.com/submit/779123
• https://vuldb.com/vuln/353965
• https://vuldb.com/vuln/353965/cti

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