Improper signature verification in EVlink City , EVlink Parking , and EVlink Smart Wallbox
Priority LOW 33CWE-347Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-347.
Summary
A CWE-347: Improper Verification of Cryptographic Signature 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 craft a malicious firmware package and bypass the signature verification mechanism.
Why it matters now
EPSS 0.00652 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 |
|---|---|---|---|---|---|
| — | 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 ) | 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 ) | — | No fix listed | CNA |
- 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 ) Vendor— Affected 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 ) 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 r8_v3.4.0.1 | 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 r8_v3.4.0.1 | 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 r8_v3.4.0.1 | 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 r8_v3.4.0.1 | 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_ev.2_firmware:*:*:*:*:*:*:*:* | before r8_v3.4.0.1 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:evlink_parking_ev.2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
- cpe:2.3:o:schneider-electric:evlink_city_evc1s22p4_firmware:*:*:*:*:*:*:*:* Versions before r8_v3.4.0.1 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 r8_v3.4.0.1 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 r8_v3.4.0.1 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 r8_v3.4.0.1 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_ev.2_firmware:*:*:*:*:*:*:*:* Versions before r8_v3.4.0.1 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:evlink_parking_ev.2:-:*:*:*:*:*:*:* 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 r8_v3.4.0.1 | 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 r8_v3.4.0.1 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-2021-22708
- 2026-10-03 Alias added: GHSA-2wrx-q5xx-wffm
- 2026-10-14 EPSS moved to the 50th–90th percentile
References
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-2021-22708 · CVE Program
- CVE-2021-22708 · NVD
- FIRST EPSS
- GHSA-2wrx-q5xx-wffm · 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