Critical severity · published Jul 21, 2021
CVE-2021-22727
A CWE-331: Insufficient Entropy 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…
9.8
CVSS
1.4%
EPSS
No
On KEV
Description
A CWE-331: Insufficient Entropy 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 gain unauthorized access to the charging station web server
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EC
Evlink City Evc1s22p4 Firmware · Schneider-electric
before r8_v3.4.0.1 · source: NVD
EC
Evlink City Evc1s7p4 Firmware · Schneider-electric
before r8_v3.4.0.1 · source: NVD
EP
Evlink Parking Ev.2 Firmware · Schneider-electric
before r8_v3.4.0.1 · source: NVD
EP
Evlink Parking Evf2 Firmware · Schneider-electric
before r8_v3.4.0.1 · source: NVD
EP
Evlink Parking Evw2 Firmware · Schneider-electric
before r8_v3.4.0.1 · source: NVD
ES
Evlink Smart Wallbox Evb1a Firmware · Schneider-electric
before r8_v3.4.0.1 · source: NVD
Affected product
EC
Evlink City Evc1s22p4 Firmware
Schneider-electric
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-22727
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-22727
Vendor Advisory
http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-06
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