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CRITICAL · 9.8

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 / EV.2 all versions prior to R8 V3.4.0.1), and...

Vulnerability 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

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
Schneider-ElectricEvlink City Evc1S22P4 Firmware< r8_v3.4.0.1
Schneider-ElectricEvlink City Evc1S22P4-
Schneider-ElectricEvlink City Evc1S7P4 Firmware< r8_v3.4.0.1
Schneider-ElectricEvlink City Evc1S7P4-
Schneider-ElectricEvlink Parking Evw2 Firmware< r8_v3.4.0.1
Schneider-ElectricEvlink Parking Evw2-
Schneider-ElectricEvlink Parking Evf2 Firmware< r8_v3.4.0.1
Schneider-ElectricEvlink Parking Evf2-
Schneider-ElectricEvlink Parking Ev.2 Firmware< r8_v3.4.0.1
Schneider-ElectricEvlink Parking Ev.2-
Schneider-ElectricEvlink Smart Wallbox Evb1A Firmware< r8_v3.4.0.1
Schneider-ElectricEvlink Smart Wallbox Evb1A-

Related Weaknesses (CWE)

CWE-331

References

FAQ

What is CVE-2021-22727?

CVE-2021-22727 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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...

How severe is CVE-2021-22727?

CVE-2021-22727 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-22727?

Check the references section above for vendor advisories and patch information. Affected products include: Schneider-Electric Evlink City Evc1S22P4 Firmware, Schneider-Electric Evlink City Evc1S22P4, Schneider-Electric Evlink City Evc1S7P4 Firmware, Schneider-Electric Evlink City Evc1S7P4, Schneider-Electric Evlink Parking Evw2 Firmware.