CVE-2024-3454Public exploit

In-fabric device footprinting via distinguishable error codes

Published Jul 24, 2024 · Updated Aug 1, 2024

Information disclosure in Connectivity Standards Alliance connectedhomeip 1.2.0.1 allows remote authenticated users to fingerprint devices. The Interaction Model returns different status codes for unauthorized reads: UNSUPPORTED_CLUSTER for absent items and UNSUPPORTED_ACCESS for implemented items. A malicious node must already be commissioned into the same Matter fabric, after which the response oracle reveals supported clusters, attributes, device type, and features without granting attribute access.

CVSS severity3.5
Low
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Connectivity Standards Alliance connectedhomeip 1.2.0.1 allows remote authenticated users to fingerprint devices. The Interaction Model returns different status codes for unauthorized reads: UNSUPPORTED_CLUSTER for absent items and UNSUPPORTED_ACCESS for implemented items. A malicious node must already be commissioned into the same Matter fabric, after which the response oracle reveals supported clusters, attributes, device type, and features without granting attribute access.

The record

CVE
CVE-2024-3454
Published
Jul 24, 2024
Updated
Aug 1, 2024
Vendor
Connectivity Standards Alliance
Product
connectedhomeip
Classifications
CWE-209, CAPEC-169, T1082
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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?

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

  1. Affected versionversion=1.2.0.1

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Connectivity Standards Alliance · connectedhomeipversion=1.2.0.1

Published CVSS scores

3.5BitdefenderCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
3.5NIST NVDCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-209Generation of Error Message Containing Sensitive Information
CAPEC-169Footprinting
T1082System Information Discovery

Public exploit references

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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