This is a remotely exploitable stack-based buffer overflow vulnerability in Belkin F9K1015 wireless routers. The vulnerability exists in the formWISP5G function when processing the webpage input argument. An unauthenticated remote attacker can exploit this to execute arbitrary code on the affected device. The vendor did not respond to the vulnerability disclosure, so no official patch is available.
Remediation
Remove affected unsupported devices from public-facing and untrusted networks. Replace the end-of-life Belkin F9K1015 with a currently supported router that receives regular security updates. Implement network access controls to block untrusted access to the device's management interface.
Exploit info
The exploit has been released to the public; public references are available at https://app.opencve.io/cve/CVE-2026-5610 or https://vulners.com/cve/CVE-2026-5610. | Potential exploit details can be searched in Exploit-DB or GitHub: https://www.exploit-db.com/search?cve=CVE-2026-5610 | https://github.com/search?q=CVE-2026-5610+exploit
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