CVE-2021-22820
moderate-risk
Published 2022-01-28
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)
Do I need to act?
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0.57% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (6)
Evlink City Evc1S22P4 Firmware
Evlink City Evc1S7P4 Firmware
Evlink Parking Evw2 Firmware
Evlink Parking Evf2 Firmware
Evlink Parking Evp2Pe Firmware
Evlink Smart Wallbox Evb1A Firmware
Affected Vendors
47
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
2/34 · Minimal
Exposure
13/34 · Low