CVE-2021-22708

HIGH

Schneider-electric Evlink City Evc1s22p4 Firmware < r8_v3.4.0.1 - Signature Verification Bypass

Title source: rule

Description

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.

References (1)

Core 1

Core References

Vendor Advisory x_refsource_misc

http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-06

Scores

CVSS v3 7.2

EPSS 0.0024

EPSS Percentile 47.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-347

Status published

Products (6)

schneider-electric/evlink_city_evc1s22p4_firmware < r8_v3.4.0.1

schneider-electric/evlink_city_evc1s7p4_firmware < r8_v3.4.0.1

schneider-electric/evlink_parking_ev.2_firmware < r8_v3.4.0.1

schneider-electric/evlink_parking_evf2_firmware < r8_v3.4.0.1

schneider-electric/evlink_parking_evw2_firmware < r8_v3.4.0.1

schneider-electric/evlink_smart_wallbox_evb1a_firmware < r8_v3.4.0.1

Published Jul 21, 2021

Tracked Since Feb 18, 2026