CVE-2021-22727

published 2021-07-21

CVE-2021-22727: 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 /…

Priority P2 60 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

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

Affected

6 ranges

Vendor	Product	Version range	Fixed in
schneider-electric	evlink_city_evc1s22p4_firmware	< r8_v3.4.0.1	r8_v3.4.0.1
schneider-electric	evlink_city_evc1s7p4_firmware	< r8_v3.4.0.1	r8_v3.4.0.1
schneider-electric	evlink_parking_ev.2_firmware	< r8_v3.4.0.1	r8_v3.4.0.1
schneider-electric	evlink_parking_evf2_firmware	< r8_v3.4.0.1	r8_v3.4.0.1
schneider-electric	evlink_parking_evw2_firmware	< r8_v3.4.0.1	r8_v3.4.0.1
schneider-electric	evlink_smart_wallbox_evb1a_firmware	< r8_v3.4.0.1	r8_v3.4.0.1

CVSS provenance

nvd v3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 7.5 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-331