{"id":"CVE-2021-0266","aliases":["EUVD-2021-2885","GHSA-9frr-8rxx-97f3"],"status":"published","title":"cSRX: Use of Hard-coded Cryptographic Keys allows an attacker to take control of the device through device management services.","description":"The use of multiple hard-coded cryptographic keys in cSRX Series software in Juniper Networks Junos OS allows an attacker to take control of any instance of a cSRX deployment through device management services. This issue affects: Juniper Networks Junos OS on cSRX Series: All versions prior to 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0088,"percentile":0.59405,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-321","CWE-798"],"published":"2021-04-22T19:37:23Z","modified":"2026-06-17T03:29:39Z","products":[{"vendor":"juniper","product":"junos"},{"vendor":"juniper networks","product":"junos os"}],"references":[{"url":"https://kb.juniper.net/JSA11157","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-0266"},{"url":"https://github.com/advisories/GHSA-9frr-8rxx-97f3"}],"sources":{"cve":[{"id":"CVE-2021-0266","title":"cSRX: Use of Hard-coded Cryptographic Keys allows an attacker to take control of the device through device management services.","description":"The use of multiple hard-coded cryptographic keys in cSRX Series software in Juniper Networks Junos OS allows an attacker to take control of any instance of a cSRX deployment through device management services. This issue affects: Juniper Networks Junos OS on cSRX Series: All versions prior to 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2.","status":"published","published":"2021-04-22T19:37:23.655Z","modified":"2024-09-17T03:13:48.705Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-321"],"updated_at":"2026-11-02T14:33:10.887946Z"}],"euvd":[{"id":"EUVD-2021-2885","description":"The use of multiple hard-coded cryptographic keys in cSRX Series software in Juniper Networks Junos OS allows an attacker to take control of any instance of a cSRX deployment through device management services. This issue affects: Juniper Networks Junos OS on cSRX Series: All versions prior to 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2.","status":"published","published":"2021-04-22T19:37:23Z","modified":"2024-09-17T03:13:48Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:28:33.76418Z"}],"ghsa":[{"id":"GHSA-9frr-8rxx-97f3","title":"The use of multiple hard-coded cryptographic keys in cSRX Series software in Juniper Networks...","description":"The use of multiple hard-coded cryptographic keys in cSRX Series software in Juniper Networks Junos OS allows an attacker to take control of any instance of a cSRX deployment through device management services. This issue affects: Juniper Networks Junos OS on cSRX Series: All versions prior to 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2.","status":"published","published":"2022-05-24T17:48:15Z","modified":"2023-01-29T05:03:27Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:45:19.492424Z"}],"nvd":[{"id":"CVE-2021-0266","description":"The use of multiple hard-coded cryptographic keys in cSRX Series software in Juniper Networks Junos OS allows an attacker to take control of any instance of a cSRX deployment through device management services. This issue affects: Juniper Networks Junos OS on cSRX Series: All versions prior to 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2.","status":"published","published":"2021-04-22T20:15:09.877Z","modified":"2026-06-17T03:29:39.45Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-321","CWE-798"],"updated_at":"2026-11-02T14:06:52.03307Z"}]}}