A CWE-1021 Improper Restriction of Rendered UI Layers or Frames vulnerability exists that…
Priority LOW 21CWE-1021Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-1021.
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)
Why it matters now
EPSS 0.00651 51st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:schneider-electric:evlink_city_evc1s22p4_firmware:*:*:*:*:*:*:*:* | before 3.4.0.2 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:evlink_city_evc1s22p4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:evlink_city_evc1s7p4_firmware:*:*:*:*:*:*:*:* | before 3.4.0.2 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:evlink_city_evc1s7p4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:evlink_parking_evw2_firmware:*:*:*:*:*:*:*:* | before 3.4.0.2 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:evlink_parking_evw2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:evlink_parking_evf2_firmware:*:*:*:*:*:*:*:* | before 3.4.0.2 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:evlink_parking_evf2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:evlink_parking_evp2pe_firmware:*:*:*:*:*:*:*:* | before 3.4.0.2 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:evlink_parking_evp2pe:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
- cpe:2.3:o:schneider-electric:evlink_city_evc1s22p4_firmware:*:*:*:*:*:*:*:* Versions before 3.4.0.2 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:evlink_city_evc1s22p4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:evlink_city_evc1s7p4_firmware:*:*:*:*:*:*:*:* Versions before 3.4.0.2 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:evlink_city_evc1s7p4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:evlink_parking_evw2_firmware:*:*:*:*:*:*:*:* Versions before 3.4.0.2 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:evlink_parking_evw2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:evlink_parking_evf2_firmware:*:*:*:*:*:*:*:* Versions before 3.4.0.2 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:evlink_parking_evf2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:evlink_parking_evp2pe_firmware:*:*:*:*:*:*:*:* Versions before 3.4.0.2 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:evlink_parking_evp2pe:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
Show 2 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:schneider-electric:evlink_smart_wallbox_evb1a_firmware:*:*:*:*:*:*:*:* | before 3.4.0.2 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:evlink_smart_wallbox_evb1a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
- cpe:2.3:o:schneider-electric:evlink_smart_wallbox_evb1a_firmware:*:*:*:*:*:*:*:* Versions before 3.4.0.2 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:evlink_smart_wallbox_evb1a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-22819
- 2026-10-03 Alias added: GHSA-27h5-6x4r-4343
- 2026-10-14 EPSS moved to the 50th–90th percentile
More Schneider Electric Evlink City Evc1s22p4 Firmware vulnerabilities
- TI-2021-05589 Hard-coded credentials in EVlink City , EVlink Parking , and EVlink Smart Wallbox CVSS 3.1CRITICAL 9.8
- TI-2021-05610 A CWE-259: Use of Hard-coded Password vulnerability exists in EVlink City (EVC1S22P4 /… CVSS 3.1CRITICAL 9.8
- TI-2021-05611 Hard-coded credentials in EVlink City , EVlink Parking , and EVlink Smart Wallbox CVSS 3.1CRITICAL 9.8
- TI-2021-05608 A CWE-331: Insufficient Entropy vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4… CVSS 3.1CRITICAL 9.8
- TI-2021-05700 A CWE-614 Insufficient Session Expiration vulnerability exists that could allow an… CVSS 3.1CRITICAL 9.8
- TI-2021-05701 A CWE-918 Server-Side Request Forgery (SSRF) vulnerability exists that could cause the… CVSS 3.1HIGH 8.6
Sources
- CVE-2021-22819 · CVE Program
- CVE-2021-22819 · NVD
- FIRST EPSS
- GHSA-27h5-6x4r-4343 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences