{"id":"CVE-2020-3977","aliases":["EUVD-2020-25242","GHSA-564r-7p67-986w"],"status":"published","title":"VMware Horizon DaaS (7.x and 8.x before 8.0.1 Update 1) contains a broken authentication...","description":"VMware Horizon DaaS (7.x and 8.x before 8.0.1 Update 1) contains a broken authentication vulnerability due to a flaw in the way it handled the first factor authentication. Successful exploitation of this issue may allow an attacker to bypass two-factor authentication process. In order to exploit this issue, an attacker must have a legitimate account on Horizon DaaS.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0096,"percentile":0.61758,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2020-09-22T13:45:14Z","modified":"2026-06-17T03:19:22Z","products":[{"vendor":"vmware","product":"horizon_daas"}],"references":[{"url":"https://www.vmware.com/security/advisories/VMSA-2020-0021.html","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-3977"},{"url":"https://github.com/advisories/GHSA-564r-7p67-986w"}],"sources":{"cve":[{"id":"CVE-2020-3977","description":"VMware Horizon DaaS (7.x and 8.x before 8.0.1 Update 1) contains a broken authentication vulnerability due to a flaw in the way it handled the first factor authentication. Successful exploitation of this issue may allow an attacker to bypass two-factor authentication process. In order to exploit this issue, an attacker must have a legitimate account on Horizon DaaS.","status":"published","published":"2020-09-22T13:45:14Z","modified":"2024-08-04T07:52:20.663Z","updated_at":"2026-11-02T14:35:51.923913Z"}],"euvd":[{"id":"EUVD-2020-25242","description":"VMware Horizon DaaS (7.x and 8.x before 8.0.1 Update 1) contains a broken authentication vulnerability due to a flaw in the way it handled the first factor authentication. Successful exploitation of this issue may allow an attacker to bypass two-factor authentication process. In order to exploit this issue, an attacker must have a legitimate account on Horizon DaaS.","status":"published","published":"2020-09-22T13:45:14Z","modified":"2024-08-04T07:52:20Z","updated_at":"2026-11-03T03:08:07.872525Z"}],"ghsa":[{"id":"GHSA-564r-7p67-986w","title":"VMware Horizon DaaS (7.x and 8.x before 8.0.1 Update 1) contains a broken authentication...","description":"VMware Horizon DaaS (7.x and 8.x before 8.0.1 Update 1) contains a broken authentication vulnerability due to a flaw in the way it handled the first factor authentication. Successful exploitation of this issue may allow an attacker to bypass two-factor authentication process. In order to exploit this issue, an attacker must have a legitimate account on Horizon DaaS.","status":"published","published":"2022-05-24T17:29:02Z","modified":"2023-01-29T05:03:56Z","updated_at":"2026-11-02T14:45:26.08688Z"}],"nvd":[{"id":"CVE-2020-3977","description":"VMware Horizon DaaS (7.x and 8.x before 8.0.1 Update 1) contains a broken authentication vulnerability due to a flaw in the way it handled the first factor authentication. Successful exploitation of this issue may allow an attacker to bypass two-factor authentication process. In order to exploit this issue, an attacker must have a legitimate account on Horizon DaaS.","status":"published","published":"2020-09-22T14:15:12.297Z","modified":"2026-06-17T03:19:22.243Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:06:15.83396Z"}]}}