{"id":"CVE-2021-42892","aliases":["EUVD-2021-29847","GHSA-26pp-v5jf-7qcc"],"status":"published","title":"In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can start telnet without authorization because the...","description":"In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can start telnet without authorization because the default username and password exists in the firmware.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00746,"percentile":0.55118,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-798"],"published":"2022-06-03T16:53:53Z","modified":"2026-06-17T04:10:15Z","products":[{"vendor":"totolink","product":"ex1200t_firmware"}],"references":[{"url":"https://github.com/p1Kk/vuln/blob/main/totolink_ex1200t_telnet_default.md","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42892"},{"url":"https://github.com/advisories/GHSA-26pp-v5jf-7qcc"}],"sources":{"cve":[{"id":"CVE-2021-42892","description":"In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can start telnet without authorization because the default username and password exists in the firmware.","status":"published","published":"2022-06-03T16:53:53Z","modified":"2024-08-04T03:47:11.783Z","updated_at":"2026-11-02T14:32:58.739039Z"}],"euvd":[{"id":"EUVD-2021-29847","description":"In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can start telnet without authorization because the default username and password exists in the firmware.","status":"published","published":"2022-06-03T16:53:53Z","modified":"2024-08-04T03:47:11Z","updated_at":"2026-11-03T03:24:15.299027Z"}],"ghsa":[{"id":"GHSA-26pp-v5jf-7qcc","title":"In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can start telnet without authorization because the...","description":"In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can start telnet without authorization because the default username and password exists in the firmware.","status":"published","published":"2022-06-04T00:00:41Z","modified":"2023-01-27T05:03:45Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:42:18.839693Z"}],"nvd":[{"id":"CVE-2021-42892","description":"In TOTOLINK EX1200T V4.1.2cu.5215, an attacker can start telnet without authorization because the default username and password exists in the firmware.","status":"published","published":"2022-06-03T17:15:07.607Z","modified":"2026-06-17T04:10:15.53Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","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-798"],"updated_at":"2026-11-02T14:07:06.501652Z"}]}}