{"id":"CVE-2020-17475","aliases":["EUVD-2020-9427","GHSA-pxvq-g38x-xmh8"],"status":"published","title":"Lack of authentication in the network relays used in MEGVII Koala 2.9.1-c3s allows attackers to...","description":"Lack of authentication in the network relays used in MEGVII Koala 2.9.1-c3s allows attackers to grant physical access to anyone by sending packet data to UDP port 5000.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00925,"percentile":0.60692,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2020-08-14T19:17:55Z","modified":"2026-06-17T02:58:59Z","products":[{"vendor":"megvii","product":"koala_firmware"}],"references":[{"url":"https://www.trendmicro.com/vinfo/us/threat-encyclopedia/vulnerability/8137/megvii-koala-291c3s-architectural-vulnerability-on-network-relays","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-17475"},{"url":"https://github.com/advisories/GHSA-pxvq-g38x-xmh8"}],"sources":{"cve":[{"id":"CVE-2020-17475","description":"Lack of authentication in the network relays used in MEGVII Koala 2.9.1-c3s allows attackers to grant physical access to anyone by sending packet data to UDP port 5000.","status":"published","published":"2020-08-14T19:17:55Z","modified":"2024-08-04T13:53:17.531Z","updated_at":"2026-11-02T14:35:54.468882Z"}],"euvd":[{"id":"EUVD-2020-9427","description":"Lack of authentication in the network relays used in MEGVII Koala 2.9.1-c3s allows attackers to grant physical access to anyone by sending packet data to UDP port 5000.","status":"published","published":"2020-08-14T19:17:55Z","modified":"2024-08-04T13:53:17Z","updated_at":"2026-11-03T03:07:26.951665Z"}],"ghsa":[{"id":"GHSA-pxvq-g38x-xmh8","title":"Lack of authentication in the network relays used in MEGVII Koala 2.9.1-c3s allows attackers to...","description":"Lack of authentication in the network relays used in MEGVII Koala 2.9.1-c3s allows attackers to grant physical access to anyone by sending packet data to UDP port 5000.","status":"published","published":"2022-05-24T17:25:43Z","modified":"2023-01-29T05:03:43Z","updated_at":"2026-11-02T14:45:23.223768Z"}],"nvd":[{"id":"CVE-2020-17475","description":"Lack of authentication in the network relays used in MEGVII Koala 2.9.1-c3s allows attackers to grant physical access to anyone by sending packet data to UDP port 5000.","status":"published","published":"2020-08-14T20:15:13.047Z","modified":"2026-06-17T02:58:59.4Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:06:13.05572Z"}]}}