CVE-2021-22721

Name: CVE-2021-22721
Creator: NVD / NIST
Published: 2021-07-21T15:15:14.34+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.95%

Last modified Jun 17, 2026

CVE-2021-22721 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A CWE-200: Information Exposure 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 get limited knowledge of javascript code when crafted malicious parameters are submitted to the charging station web server.. EPSS estimates a 0.95% chance of exploitation in the next 30 days.

Description

A CWE-200: Information Exposure 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 get limited knowledge of javascript code when crafted malicious parameters are submitted to the charging station web server.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.95%

56.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Schneider-Electric	Evlink City Evc1s22p4 Firmware	< r8_v3.4.0.1
Schneider-Electric	Evlink City Evc1s7p4 Firmware	< r8_v3.4.0.1
Schneider-Electric	Evlink Parking Evw2 Firmware	< r8_v3.4.0.1
Schneider-Electric	Evlink Parking Evf2 Firmware	< r8_v3.4.0.1
Schneider-Electric	Evlink Parking Ev.2 Firmware	< r8_v3.4.0.1
Schneider-Electric	Evlink Smart Wallbox Evb1a Firmware	< r8_v3.4.0.1

References

http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-06Vendor Advisory
http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-06Vendor Advisory

Timeline

Published: Jul 21, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22721?

How severe is CVE-2021-22721?

CVE-2021-22721 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.95% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22721?

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-2021-22721?

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

Scan your code now

Source: NVD / NIST