CVE-2024-0568

Unauthenticated configuration tampering via NFC

Published Feb 14, 2024 · Updated May 8, 2025

Improper authentication in all versions of Schneider Electric Harmony NFC relays allows physically proximate attackers to alter settings. Schneider Electric has not published the authentication check or processing error that permits unauthorized NFC configuration changes. NFC proximity is required, but no prior authentication or operator action is needed to modify operational relay parameters.

CVSS severity8.8
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in all versions of Schneider Electric Harmony NFC relays allows physically proximate attackers to alter settings. Schneider Electric has not published the authentication check or processing error that permits unauthorized NFC configuration changes. NFC proximity is required, but no prior authentication or operator action is needed to modify operational relay parameters.

The record

CVE
CVE-2024-0568
Published
Feb 14, 2024
Updated
May 8, 2025
Vendor
Distributed Data Systems
Product
Harmony Timer Relay RENF22R2MMW
Classifications
CWE-287, T0836
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 14, 2024CVE publishedPublication date reported by the CVE source.
  2. May 8, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All Versions

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Distributed Data Systems · Harmony Timer Relay RENF22R2MMWversion=All Versions
Distributed Data Systems · Harmony Control Relay RMNF22TB30version=All versions

Published CVSS scores

8.8Schneider ElectricCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T0836Modify Parameter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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