Vulnerability in Schneider-Electric Evlink City Evc1s22p4

CVE-2021-22708

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (49.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-22708: held from 0.007 to 0.007.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-22708?
CVE-2021-22708 is a high-severity vulnerability in Schneider-Electric Evlink City Evc1s22p4, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.2/10. Published 2021-07-21.
How severe is CVE-2021-22708?
High severity. CVSS v3 base score is 7.2 out of 10.