{"id":"CVE-2021-22820","aliases":["EUVD-2021-9955","GHSA-2c5p-55qj-5p58"],"status":"published","title":"A CWE-614 Insufficient Session Expiration vulnerability exists that could allow an attacker to...","description":"A CWE-614 Insufficient Session Expiration vulnerability exists that could allow an attacker to maintain an unauthorized access over a hijacked session to the charger station web server even after the legitimate user account holder has changed his password. Affected Products: EVlink City EVC1S22P4 / EVC1S7P4 (All versions prior to R8 V3.4.0.2 ), EVlink Parking EVW2 / EVF2 / EVP2PE (All versions prior to R8 V3.4.0.2), and EVlink Smart Wallbox EVB1A (All versions prior to R8 V3.4.0.2)","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":0.01084,"percentile":0.65508,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-613"],"published":"2022-01-28T19:09:36Z","modified":"2026-06-17T03:37:51Z","products":[{"vendor":"schneider-electric","product":"evlink_city_evc1s22p4_firmware"},{"vendor":"schneider-electric","product":"evlink_city_evc1s7p4_firmware"},{"vendor":"schneider-electric","product":"evlink_parking_evf2_firmware"},{"vendor":"schneider-electric","product":"evlink_parking_evp2pe_firmware"},{"vendor":"schneider-electric","product":"evlink_parking_evw2_firmware"},{"vendor":"schneider-electric","product":"evlink_smart_wallbox_evb1a_firmware"}],"references":[{"url":"https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-348-02","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22820"},{"url":"https://github.com/advisories/GHSA-2c5p-55qj-5p58"}],"sources":{"cve":[{"id":"CVE-2021-22820","description":"A CWE-614 Insufficient Session Expiration vulnerability exists that could allow an attacker to maintain an unauthorized access over a hijacked session to the charger station web server even after the legitimate user account holder has changed his password. Affected Products: EVlink City EVC1S22P4 / EVC1S7P4 (All versions prior to R8 V3.4.0.2 ), EVlink Parking EVW2 / EVF2 / EVP2PE (All versions prior to R8 V3.4.0.2), and EVlink Smart Wallbox EVB1A (All versions prior to R8 V3.4.0.2)","status":"published","published":"2022-01-28T19:09:36Z","modified":"2024-08-03T18:51:07.469Z","updated_at":"2026-11-02T14:32:57.701381Z"}],"euvd":[{"id":"EUVD-2021-9955","description":"A CWE-614 Insufficient Session Expiration vulnerability exists that could allow an attacker to maintain an unauthorized access over a hijacked session to the charger station web server even after the legitimate user account holder has changed his password. Affected Products: EVlink City EVC1S22P4 / EVC1S7P4 (All versions prior to R8 V3.4.0.2 ), EVlink Parking EVW2 / EVF2 / EVP2PE (All versions prior to R8 V3.4.0.2), and EVlink Smart Wallbox EVB1A (All versions prior to R8 V3.4.0.2)","status":"published","published":"2022-01-28T19:09:36Z","modified":"2024-08-03T18:51:07Z","updated_at":"2026-11-03T03:25:01.154097Z"}],"ghsa":[{"id":"GHSA-2c5p-55qj-5p58","title":"A CWE-614 Insufficient Session Expiration vulnerability exists that could allow an attacker to...","description":"A CWE-614 Insufficient Session Expiration vulnerability exists that could allow an attacker to maintain an unauthorized access over a hijacked session to the charger station web server even after the legitimate user account holder has changed his password. Affected Products: EVlink City EVC1S22P4 / EVC1S7P4 (All versions prior to R8 V3.4.0.2 ), EVlink Parking EVW2 / EVF2 / EVP2PE (All versions prior to R8 V3.4.0.2), and EVlink Smart Wallbox EVB1A (All versions prior to R8 V3.4.0.2)","status":"published","published":"2022-01-29T00:00:45Z","modified":"2023-02-03T05:05:26Z","cwes":["CWE-613"],"updated_at":"2026-11-02T14:53:44.391187Z"}],"nvd":[{"id":"CVE-2021-22820","description":"A CWE-614 Insufficient Session Expiration vulnerability exists that could allow an attacker to maintain an unauthorized access over a hijacked session to the charger station web server even after the legitimate user account holder has changed his password. Affected Products: EVlink City EVC1S22P4 / EVC1S7P4 (All versions prior to R8 V3.4.0.2 ), EVlink Parking EVW2 / EVF2 / EVP2PE (All versions prior to R8 V3.4.0.2), and EVlink Smart Wallbox EVB1A (All versions prior to R8 V3.4.0.2)","status":"published","published":"2022-01-28T20:15:10.463Z","modified":"2026-06-17T03:37:51.36Z","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-613"],"updated_at":"2026-11-02T14:07:04.178977Z"}]}}