{"api_version":"1","generated_at":"2026-07-23T11:38:40+00:00","cve":"CVE-2021-31384","urls":{"html":"https://cve.report/CVE-2021-31384","api":"https://cve.report/api/cve/CVE-2021-31384.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-31384","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-31384"},"summary":{"title":"CVE-2021-31384","description":"Due to a Missing Authorization weakness and Insufficient Granularity of Access Control in a specific device configuration, a vulnerability exists in Juniper Networks Junos OS on SRX Series whereby an attacker who attempts to access J-Web administrative interfaces can successfully do so from any device interface regardless of the web-management configuration and filter rules which may otherwise protect access to J-Web. This issue affects: Juniper Networks Junos OS SRX Series 20.4 version 20.4R1 and later versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2. 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