CVE-2021-22774Network attack vector

Credential disclosure via unsalted password hashes

Published Jul 21, 2021 · Updated Aug 3, 2024

Unsalted password hashing in Schneider Electric EVlink charging stations before R8 V3.4.0.1 allows remote attackers to recover user credentials. Station account passwords use a one-way hash without a salt, allowing dictionary guesses to be compared against reusable hashes. The network-reachable attacker needs no authentication or user interaction; impact is credential disclosure that can enable subsequent station access.

CVSS severity7.5
High
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsalted password hashing in Schneider Electric EVlink charging stations before R8 V3.4.0.1 allows remote attackers to recover user credentials. Station account passwords use a one-way hash without a salt, allowing dictionary guesses to be compared against reusable hashes. The network-reachable attacker needs no authentication or user interaction; impact is credential disclosure that can enable subsequent station access.

The record

CVE
CVE-2021-22774
Published
Jul 21, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-759, CWE-916, T1110
Attack vector
network
Privileges
unauthenticated

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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-759Use of a One-Way Hash without a Salt
CWE-916Use of Password Hash With Insufficient Computational Effort
T1110Brute Force

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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