{"id":"CVE-2021-22708","aliases":["EUVD-2021-9843","GHSA-2wrx-q5xx-wffm"],"status":"published","title":"A CWE-347: Improper Verification of Cryptographic Signature vulnerability exists in EVlink City ...","description":"A CWE-347: Improper Verification of Cryptographic Signature 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 craft a malicious firmware package and bypass the signature verification mechanism.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00652,"percentile":0.51572,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-347"],"published":"2021-07-21T10:41:53Z","modified":"2026-06-17T03:37:36Z","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-2021-22708"},{"url":"https://github.com/advisories/GHSA-2wrx-q5xx-wffm"}],"sources":{"cve":[{"id":"CVE-2021-22708","description":"A CWE-347: Improper Verification of Cryptographic Signature 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 craft a malicious firmware package and bypass the signature verification mechanism.","status":"published","published":"2021-07-21T10:41:53Z","modified":"2024-08-03T18:51:07.103Z","cwes":["CWE-347"],"updated_at":"2026-11-02T14:32:58.028461Z"}],"euvd":[{"id":"EUVD-2021-9843","description":"A CWE-347: Improper Verification of Cryptographic Signature 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 craft a malicious firmware package and bypass the signature verification mechanism.","status":"published","published":"2021-07-21T10:41:53Z","modified":"2024-08-03T18:51:07Z","updated_at":"2026-11-03T03:25:01.606931Z"}],"ghsa":[{"id":"GHSA-2wrx-q5xx-wffm","title":"A CWE-347: Improper Verification of Cryptographic Signature vulnerability exists in EVlink City ...","description":"A CWE-347: Improper Verification of Cryptographic Signature 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 craft a malicious firmware package and bypass the signature verification mechanism.","status":"published","published":"2022-05-24T19:08:48Z","modified":"2023-01-30T05:00:55Z","cwes":["CWE-347"],"updated_at":"2026-11-02T14:46:18.181654Z"}],"nvd":[{"id":"CVE-2021-22708","description":"A CWE-347: Improper Verification of Cryptographic Signature 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 craft a malicious firmware package and bypass the signature verification mechanism.","status":"published","published":"2021-07-21T15:15:14.27Z","modified":"2026-06-17T03:37:36.327Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/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"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:06:56.185362Z"}]}}