CVE-2021-22818

Name: CVE-2021-22818
Creator: NVD / NIST
Published: 2022-01-28T20:15:10.353+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.00%

Last modified Jun 17, 2026

CVE-2021-22818 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A CWE-307 Improper Restriction of Excessive Authentication Attempts vulnerability exists that could allow an attacker to gain unauthorized access to the charging station web interface by performing brute force attacks. 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). EPSS estimates a 1.00% chance of exploitation in the next 30 days.

Description

A CWE-307 Improper Restriction of Excessive Authentication Attempts vulnerability exists that could allow an attacker to gain unauthorized access to the charging station web interface by performing brute force attacks. 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)

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

1.00%

58.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-307

Affected Software

Vendor	Product	Versions
Schneider-Electric	Evlink City Evc1s22p4 Firmware	< 3.4.0.2
Schneider-Electric	Evlink City Evc1s7p4 Firmware	< 3.4.0.2
Schneider-Electric	Evlink Parking Evw2 Firmware	< 3.4.0.2
Schneider-Electric	Evlink Parking Evf2 Firmware	< 3.4.0.2
Schneider-Electric	Evlink Parking Evp2pe Firmware	< 3.4.0.2
Schneider-Electric	Evlink Smart Wallbox Evb1a Firmware	< 3.4.0.2

References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-348-02Patch, Vendor Advisory
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-348-02Patch, Vendor Advisory

Timeline

Published: Jan 28, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22818?

How severe is CVE-2021-22818?

CVE-2021-22818 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.00% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22818?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-22818?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST