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Fencer Vulns
high 7.5

CVE-2021-22818 json

A CWE-307 Improper Restriction of Excessive Authentication Attempts vulnerability exists that could allow an attacker to gain unauthorized…

published 2022-01-28 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-9953

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits
0
none known

Summary

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)

Patch / fix

  • 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

Exploit prediction

1.00% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-307 Improper Restriction of Excessive Authentication Attempts

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.