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CVE-2021-22707

75
FAUCET Score

CVE-2021-22707 is a critical hard-coded credentials vulnerability (CWE-798) affecting Schneider Electric EVlink City, EVlink Parking, and EVlink Smart Wallbox charging stations prior to R8 V3.4.0.1. This flaw allows an unauthenticated attacker to issue unauthorized commands with administrative privileges to the charging station's web server. With a CVSS score of 9.8 (CRITICAL), the vulnerability has a network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While not listed in CISA KEV, exploit intelligence indicates the availability of Nuclei templates for authentication bypass, and it has garnered significant community discussion and media coverage, including an article detailing potential RCE and utility takeovers.

Impacted Technologies

VendorProductVersion(s)CPE
< r8_v3.4.0.1CPE matchmatch criteria
cpe:2.3:o:schneider-electric:evlink_city_evc1s22p4_firmware:*:*:*:*:*:*:*:*
< r8_v3.4.0.1CPE matchmatch criteria
cpe:2.3:o:schneider-electric:evlink_city_evc1s7p4_firmware:*:*:*:*:*:*:*:*
< r8_v3.4.0.1CPE matchmatch criteria
cpe:2.3:o:schneider-electric:evlink_parking_evw2_firmware:*:*:*:*:*:*:*:*
< r8_v3.4.0.1CPE matchmatch criteria
cpe:2.3:o:schneider-electric:evlink_parking_evf2_firmware:*:*:*:*:*:*:*:*
< r8_v3.4.0.1CPE matchmatch criteria
cpe:2.3:o:schneider-electric:evlink_parking_ev.2_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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 Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
64.61%
Probability of exploitation in next 30 days
EPSS Percentile
99.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-22707 · Aug 10, 2023
This CVE's current EPSS score of 0.6461 is in the 97th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

download.schneider-electric.com / files
Vendor Advisory