CVE-2021-22727
Critical
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
SeverityCritical
CVSS9.8
Exploit probability—
ProductSchneider-electric Evlink City Evc1s22p4 Firmware
PublishedJul 21, 2021
First seenJul 21, 2021
Weakness typeCWE-331CWE-331
How to fix
Update
- schneider-electric evlink_city_evc1s22p4_firmwarer8_v3.4.0.1 or later
- schneider-electric evlink_city_evc1s7p4_firmwarer8_v3.4.0.1 or later
- schneider-electric evlink_parking_evw2_firmwarer8_v3.4.0.1 or later
- schneider-electric evlink_parking_evf2_firmwarer8_v3.4.0.1 or later
- schneider-electric evlink_parking_ev.2_firmwarer8_v3.4.0.1 or later
- schneider-electric evlink_smart_wallbox_evb1a_firmwarer8_v3.4.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| schneider-electric evlink_city_evc1s22p4_firmware | v < r8_v3.4.0.1 | r8_v3.4.0.1 |
| schneider-electric evlink_city_evc1s7p4_firmware | v < r8_v3.4.0.1 | r8_v3.4.0.1 |
| schneider-electric evlink_parking_evw2_firmware | v < r8_v3.4.0.1 | r8_v3.4.0.1 |
| schneider-electric evlink_parking_evf2_firmware | v < r8_v3.4.0.1 | r8_v3.4.0.1 |
| schneider-electric evlink_parking_ev.2_firmware | v < r8_v3.4.0.1 | r8_v3.4.0.1 |
| schneider-electric evlink_smart_wallbox_evb1a_firmware | v < r8_v3.4.0.1 | r8_v3.4.0.1 |
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