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Fencer Vulns
low 3.5

CVE-2024-3454 json

In-Fabric Matter Cluster Attribute Disclosure

published 2024-07-24 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-32041

cvss
3.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits
0
none known

Summary

An implementation issue in the Connectivity Standards Alliance Matter 1.2 protocol as used in the connectedhomeip SDK allows a third party to disclose information about devices part of the same fabric (footprinting), even though the protocol is designed to prevent access to such information.

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.5 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD 3.1 3.5 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected products

  • Connectivity Standards Alliance connectedhomeip

Classification

Weakness
  • CWE-209 Generation of Error Message Containing Sensitive Information

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.