Critical severity · published Jan 28, 2022
CVE-2021-22820
A CWE-614 Insufficient Session Expiration vulnerability exists that could allow an attacker to maintain an unauthorized access over a hijacked session to the charger station web…
9.8
CVSS
1.1%
EPSS
No
On KEV
Description
A CWE-614 Insufficient Session Expiration vulnerability exists that could allow an attacker to maintain an unauthorized access over a hijacked session to the charger station web server even after the legitimate user account holder has changed his password. 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)
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)1.1% · higher than 65% 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 3.4.0.2 · source: NVD
EC
Evlink City Evc1s7p4 Firmware · Schneider-electric
before 3.4.0.2 · source: NVD
EP
Evlink Parking Evf2 Firmware · Schneider-electric
before 3.4.0.2 · source: NVD
EP
Evlink Parking Evp2pe Firmware · Schneider-electric
before 3.4.0.2 · source: NVD
EP
Evlink Parking Evw2 Firmware · Schneider-electric
before 3.4.0.2 · source: NVD
ES
Evlink Smart Wallbox Evb1a Firmware · Schneider-electric
before 3.4.0.2 · source: NVD
Affected product
EC
Evlink City Evc1s22p4 Firmware
Schneider-electric
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-22820
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-22820
Patch
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-348-02
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