CVE & CISA-KEV Catalog

CVE-2021-22821

HIGH
8.6
CVSS v3
NVD

Description

A CWE-918 Server-Side Request Forgery (SSRF) vulnerability exists that could cause the station web server to forward requests to unintended network targets when crafted malicious parameters are submitted to the charging station web server. 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)

How to fix

Remediation Available
evlink city evc1s22p4 firmwareNVD
Affected:< 3.4.0.2Fixed in:3.4.0.2CVE-2021-22821derived from NVD
evlink city evc1s7p4 firmwareNVD
Affected:< 3.4.0.2Fixed in:3.4.0.2CVE-2021-22821derived from NVD
evlink parking evf2 firmwareNVD
Affected:< 3.4.0.2Fixed in:3.4.0.2CVE-2021-22821derived from NVD
evlink parking evp2pe firmwareNVD
Affected:< 3.4.0.2Fixed in:3.4.0.2CVE-2021-22821derived from NVD
evlink parking evw2 firmwareNVD
Affected:< 3.4.0.2Fixed in:3.4.0.2CVE-2021-22821derived from NVD
evlink smart wallbox evb1a firmwareNVD
Affected:< 3.4.0.2Fixed in:3.4.0.2CVE-2021-22821derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged

Impact

ConfidentialityNone
IntegrityHigh
AvailabilityNone

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

Exploit Intelligence

0.82%probability of exploitation in 30 days
53rdpercentile

Moderate risk: more likely to be exploited than 53% of all known CVEs.

References

Related Vulnerabilities

Other CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-21893High8.2100%KEV + Ransom-
CVE-2021-40438Critical9.0100%KEVFix
CVE-2021-34473Critical9.1100%KEV + RansomFix
CVE-2021-26855Critical9.1100%KEV + RansomFix
CVE-2021-21985Critical9.8100%KEV + RansomFix
CVE-2022-41040High8.8100%KEV + RansomFix
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CVE-2021-22821 severity badge

Markdown

[![CVE-2021-22821](https://tridentstack.com/cve/badge/CVE-2021-22821.svg)](https://tridentstack.com/cve/CVE-2021-22821)

HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.