{"api_version":"1","generated_at":"2026-07-23T14:32:08+00:00","cve":"CVE-2021-3125","urls":{"html":"https://cve.report/CVE-2021-3125","api":"https://cve.report/api/cve/CVE-2021-3125.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-3125","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-3125"},"summary":{"title":"CVE-2021-3125","description":"In TP-Link TL-XDR3230 < 1.0.12, TL-XDR1850 < 1.0.9, TL-XDR1860 < 1.0.14, TL-XDR3250 < 1.0.2, TL-XDR6060 Turbo < 1.1.8, TL-XDR5430 < 1.0.11, and possibly others, when IPv6 is used, a routing loop can occur that generates excessive network traffic between an affected device and its upstream ISP's router. 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