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TI-2024-37278 Aliases CVE-2024-56317GHSA-64g8-8mm8-6qp6

In Matter (aka connectedhomeip or Project CHIP) through 1.4.0.0, the WriteAcl function…

Priority HIGH 72CWE-281Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

In Matter (aka connectedhomeip or Project CHIP) through 1.4.0.0, the WriteAcl function deletes all existing ACL entries first, and then attempts to recreate them based on user input. If input validation fails during decoding, the process stops, and no entries are restored by access-control-server.cpp, i.e., a denial of service.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00386 32nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MatterMatterup to 1.4.0.0—No fix listedCNA
  • Matter VendorMatter Affected up to 1.4.0.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-56317
  2. 2026-10-03 Alias added: GHSA-64g8-8mm8-6qp6

References

Other 1

  • TI-2024-37280 Resource allocation without limits in Matter CVSS 3.1HIGH 7.5
  • TI-2024-37279 NULL pointer dereference in Matter CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences