{"id":"CVE-2020-3929","aliases":["EUVD-2020-25194","GHSA-pqc7-3qg5-vwc6"],"status":"published","title":"GeoVision Door Access Control Device - Shared cryptographic keys","description":"GeoVision Door Access Control device family employs shared cryptographic private keys for SSH and HTTPS. Attackers may conduct MITM attack with the derived keys and plaintext recover of encrypted messages.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00507,"percentile":0.43528,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-326"],"published":"2020-06-12T08:25:23Z","modified":"2026-06-17T03:19:16Z","products":[{"vendor":"geovision","product":"door access control device"},{"vendor":"usavisionsys","product":"geovision_gv-as1010_firmware"},{"vendor":"usavisionsys","product":"geovision_gv-as210_firmware"},{"vendor":"usavisionsys","product":"geovision_gv-as410_firmware"},{"vendor":"usavisionsys","product":"geovision_gv-as810_firmware"},{"vendor":"usavisionsys","product":"geovision_gv-gf192x_firmware"}],"references":[{"url":"https://www.twcert.org.tw/tw/cp-132-3696-6601c-1.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-3929"},{"url":"https://github.com/advisories/GHSA-pqc7-3qg5-vwc6"}],"sources":{"cve":[{"id":"CVE-2020-3929","title":"GeoVision Door Access Control Device - Shared cryptographic keys","description":"GeoVision Door Access Control device family employs shared cryptographic private keys for SSH and HTTPS. Attackers may conduct MITM attack with the derived keys and plaintext recover of encrypted messages.","status":"published","published":"2020-06-12T08:25:23.476Z","modified":"2024-09-17T02:26:42.6Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:35:51.563355Z"}],"euvd":[{"id":"EUVD-2020-25194","description":"GeoVision Door Access Control device family employs shared cryptographic private keys for SSH and HTTPS. Attackers may conduct MITM attack with the derived keys and plaintext recover of encrypted messages.","status":"published","published":"2020-06-12T08:25:23Z","modified":"2024-09-17T02:26:42Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T00:28:40.410394Z"}],"ghsa":[{"id":"GHSA-pqc7-3qg5-vwc6","title":"GeoVision Door Access Control device family employs shared cryptographic private keys for SSH and...","description":"GeoVision Door Access Control device family employs shared cryptographic private keys for SSH and HTTPS. Attackers may conduct MITM attack with the derived keys and plaintext recover of encrypted messages.","status":"published","published":"2022-05-24T17:20:23Z","modified":"2023-01-29T05:02:51Z","updated_at":"2026-11-02T14:45:11.402148Z"}],"nvd":[{"id":"CVE-2020-3929","description":"GeoVision Door Access Control device family employs shared cryptographic private keys for SSH and HTTPS. Attackers may conduct MITM attack with the derived keys and plaintext recover of encrypted messages.","status":"published","published":"2020-06-12T09:15:10.38Z","modified":"2026-06-17T03:19:16.873Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:06:07.249892Z"}]}}