{"id":"CVE-2021-22727","aliases":["EUVD-2021-9862","GHSA-cv48-2frc-94w5"],"status":"published","title":"A CWE-331: Insufficient Entropy vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all...","description":"A CWE-331: Insufficient Entropy vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1 ) that could allow an attacker to gain unauthorized access to the charging station web server","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01404,"percentile":0.72786,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-331"],"published":"2021-07-21T10:43:27Z","modified":"2026-06-17T03:37:39Z","products":[{"vendor":"schneider-electric","product":"evlink_city_evc1s22p4_firmware"},{"vendor":"schneider-electric","product":"evlink_city_evc1s7p4_firmware"},{"vendor":"schneider-electric","product":"evlink_parking_ev.2_firmware"},{"vendor":"schneider-electric","product":"evlink_parking_evf2_firmware"},{"vendor":"schneider-electric","product":"evlink_parking_evw2_firmware"},{"vendor":"schneider-electric","product":"evlink_smart_wallbox_evb1a_firmware"}],"references":[{"url":"http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-06","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22727"},{"url":"https://github.com/advisories/GHSA-cv48-2frc-94w5"}],"sources":{"cve":[{"id":"CVE-2021-22727","description":"A CWE-331: Insufficient Entropy vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1 ) that could allow an attacker to gain unauthorized access to the charging station web server","status":"published","published":"2021-07-21T10:43:27Z","modified":"2024-08-03T18:51:07.027Z","cwes":["CWE-331"],"updated_at":"2026-11-02T14:32:57.701381Z"}],"euvd":[{"id":"EUVD-2021-9862","description":"A CWE-331: Insufficient Entropy vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1 ) that could allow an attacker to gain unauthorized access to the charging station web server","status":"published","published":"2021-07-21T10:43:27Z","modified":"2024-08-03T18:51:07Z","updated_at":"2026-11-03T03:25:01.606931Z"}],"ghsa":[{"id":"GHSA-cv48-2frc-94w5","title":"A CWE-331: Insufficient Entropy vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all...","description":"A CWE-331: Insufficient Entropy vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1 ) that could allow an attacker to gain unauthorized access to the charging station web server","status":"published","published":"2022-05-24T19:08:48Z","modified":"2023-01-30T05:00:56Z","cwes":["CWE-331"],"updated_at":"2026-11-02T14:46:18.181654Z"}],"nvd":[{"id":"CVE-2021-22727","description":"A CWE-331: Insufficient Entropy vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1 ) that could allow an attacker to gain unauthorized access to the charging station web server","status":"published","published":"2021-07-21T15:15:14.617Z","modified":"2026-06-17T03:37:39.84Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-331"],"updated_at":"2026-11-02T14:06:56.185362Z"}]}}