{"id":"CVE-2021-45035","aliases":["EUVD-2021-31832","GHSA-pv7f-h3w8-w3jh"],"status":"published","title":"Velneo vClient Improper authentication","description":"Velneo vClient on its 28.1.3 version, does not correctly check the certificate of authenticity by default. This could allow an attacker that has access to the network to perform a MITM attack in order to obtain the user´s credentials.","severity":{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00464,"percentile":0.4064,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287","CWE-295"],"published":"2022-09-23T15:02:18Z","modified":"2026-06-17T04:13:04Z","products":[{"vendor":"velneo","product":"vclient"},{"vendor":"velneo","product":"velneo vclient"}],"references":[{"url":"https://www.incibe-cert.es/en/early-warning/security-advisories/velneo-vclient-improper-authentication","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://velneo.es/publicacion-de-incidencia-de-seguridad-en-cve-cve-2021-45035/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://www.velneo.com/blog/nueva-revision-velneo-29-2","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://doc.velneo.com/v/29/velneo/notas-de-la-version#verificacion-de-certificados","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45035"},{"url":"https://github.com/advisories/GHSA-pv7f-h3w8-w3jh"}],"sources":{"cve":[{"id":"CVE-2021-45035","title":"Velneo vClient Improper authentication","description":"Velneo vClient on its 28.1.3 version, does not correctly check the certificate of authenticity by default. This could allow an attacker that has access to the network to perform a MITM attack in order to obtain the user´s credentials.","status":"published","published":"2022-09-23T15:02:18.737Z","modified":"2025-05-22T18:24:43.357Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:33:02.580561Z"}],"euvd":[{"id":"EUVD-2021-31832","description":"Velneo vClient on its 28.1.3 version, does not correctly check the certificate of authenticity by default. This could allow an attacker that has access to the network to perform a MITM attack in order to obtain the user´s credentials.","status":"published","published":"2022-09-23T15:02:18Z","modified":"2025-05-22T18:24:43Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:32:39.867081Z"}],"ghsa":[{"id":"GHSA-pv7f-h3w8-w3jh","title":"Velneo vClient on its 28.1.3 version, does not correctly check the certificate of authenticity by...","description":"Velneo vClient on its 28.1.3 version, does not correctly check the certificate of authenticity by default. This could allow an attacker that has access to the network to perform a MITM attack in order to obtain the user´s credentials.","status":"published","published":"2022-09-25T00:00:20Z","modified":"2023-07-30T05:02:02Z","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"}],"cwes":["CWE-287","CWE-295"],"updated_at":"2026-11-02T14:54:43.067561Z"}],"nvd":[{"id":"CVE-2021-45035","description":"Velneo vClient on its 28.1.3 version, does not correctly check the certificate of authenticity by default. This could allow an attacker that has access to the network to perform a MITM attack in order to obtain the user´s credentials.","status":"published","published":"2022-09-23T16:15:10.38Z","modified":"2026-06-17T04:13:04.55Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:L/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"}],"cwes":["CWE-287","CWE-295"],"updated_at":"2026-11-02T14:07:06.906968Z"}]}}