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Fencer Vulns
medium 4.3

CVE-2021-22819 json

A CWE-1021 Improper Restriction of Rendered UI Layers or Frames vulnerability exists that could cause unintended modifications of the produ…

published 2022-01-28 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-9954

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

A CWE-1021 Improper Restriction of Rendered UI Layers or Frames vulnerability exists that could cause unintended modifications of the product settings or user accounts when deceiving the user to use the web interface rendered within iframes. 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

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-1021 Improper Restriction of Rendered UI Layers or Frames

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.