CVE-2024-56317Public exploitNetwork attack vector

Device lockout via destructive ACL replacement

Published Dec 18, 2024 · Updated Jan 2, 2025

Denial of service in Matter through 1.4.0.0 allows remote authenticated users to erase device ACLs via a malformed ACL write. WriteAcl in access-control-server.cpp performs ReplaceAll before decoding and validating replacement entries, so a constraint error leaves the ACL empty. Administer privilege on the target fabric is required; exploitation leaves the node inaccessible even to its administrators.

CVSS severityUnavailable
Unscored
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Matter through 1.4.0.0 allows remote authenticated users to erase device ACLs via a malformed ACL write. WriteAcl in access-control-server.cpp performs ReplaceAll before decoding and validating replacement entries, so a constraint error leaves the ACL empty. Administer privilege on the target fabric is required; exploitation leaves the node inaccessible even to its administrators.

The record

CVE
CVE-2024-56317
Published
Dec 18, 2024
Updated
Jan 2, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1499
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Jan 2, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

No CVSS assessment is available in this record.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1499Endpoint Denial of Service

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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