CVE-2021-22773Network attack vector

Unauthorized password change

Published Jul 21, 2021 · Updated Aug 3, 2024

Unverified password change in EVlink charging stations before R8 V3.4.0.1 allows attackers connected to the web server to modify user passwords. The advisory identifies the charging-station web server password-change function but does not disclose the specific validation failure or endpoint operation. Access requires network connectivity to that server; successful exploitation changes account credentials and can block legitimate access or enable subsequent authenticated control.

CVSS severity6.5
Medium
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unverified password change in EVlink charging stations before R8 V3.4.0.1 allows attackers connected to the web server to modify user passwords. The advisory identifies the charging-station web server password-change function but does not disclose the specific validation failure or endpoint operation. Access requires network connectivity to that server; successful exploitation changes account credentials and can block legitimate access or enable subsequent authenticated control.

The record

CVE
CVE-2021-22773
Published
Jul 21, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-620, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 21, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.0NVDAV:N/AC:L/Au:S/C:N/I:P/A:N
6.5NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-620Unverified Password Change
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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