{"id":"CVE-2021-20694","aliases":["EUVD-2021-8109","GHSA-q6x9-wmf8-g847"],"status":"published","title":"Improper access control vulnerability in DAP-1880AC firmware version 1.21 and earlier allows a...","description":"Improper access control vulnerability in DAP-1880AC firmware version 1.21 and earlier allows a remote authenticated attacker to bypass access restriction and to start a telnet service via unspecified vectors.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01705,"percentile":0.77581,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2021-04-26T00:20:41Z","modified":"2026-06-17T03:34:16Z","products":[{"vendor":"d-link japan k.k.","product":"dap-1880ac"},{"vendor":"dlink","product":"dap-1880ac_firmware"}],"references":[{"url":"https://www.dlink-jp.com/support/release/jvnvu92898656_dap-1880ac.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://jvn.jp/en/vu/JVNVU92898656/index.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20694"},{"url":"https://github.com/advisories/GHSA-q6x9-wmf8-g847"}],"sources":{"cve":[{"id":"CVE-2021-20694","description":"Improper access control vulnerability in DAP-1880AC firmware version 1.21 and earlier allows a remote authenticated attacker to bypass access restriction and to start a telnet service via unspecified vectors.","status":"published","published":"2021-04-26T00:20:41Z","modified":"2024-08-03T17:45:45.459Z","updated_at":"2026-11-02T14:32:55.19484Z"}],"euvd":[{"id":"EUVD-2021-8109","description":"Improper access control vulnerability in DAP-1880AC firmware version 1.21 and earlier allows a remote authenticated attacker to bypass access restriction and to start a telnet service via unspecified vectors.","status":"published","published":"2021-04-26T00:20:41Z","modified":"2024-08-03T17:45:45Z","updated_at":"2026-11-03T03:25:08.33351Z"}],"ghsa":[{"id":"GHSA-q6x9-wmf8-g847","title":"Improper access control vulnerability in DAP-1880AC firmware version 1.21 and earlier allows a...","description":"Improper access control vulnerability in DAP-1880AC firmware version 1.21 and earlier allows a remote authenticated attacker to bypass access restriction and to start a telnet service via unspecified vectors.","status":"published","published":"2022-05-24T17:48:50Z","modified":"2023-01-27T05:03:14Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:42:12.225813Z"}],"nvd":[{"id":"CVE-2021-20694","description":"Improper access control vulnerability in DAP-1880AC firmware version 1.21 and earlier allows a remote authenticated attacker to bypass access restriction and to start a telnet service via unspecified vectors.","status":"published","published":"2021-04-26T01:15:07.83Z","modified":"2026-06-17T03:34:16.163Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:52.81233Z"}]}}