CVE-2024-3297 | BDVDB-2026-243458 Detail

Connectivity Standards AllianceMatter

Description#

An issue in the Certificate Authenticated Session Establishment (CASE) protocol for establishing secure sessions between two devices, as implemented in the Matter protocol versions before Matter 1.1 allows an attacker to replay manipulated CASE Sigma1 messages to make the device unresponsive until the device is power-cycled.

Impact#

CAPEC-125 Flooding

Weaknesses#

CWE-400 Uncontrolled Resource Consumption

References#

https://www.bitdefender.com/support/security-advisories/session-establishment-lock-up-during-replay-of-case-sigma1-messages/

Exploit#

No public exploit known

History#

Version 12024-07-24Record published in the CVE List.
Version 22024-08-01Most recent update recorded in the CVE List.

Published

Published: 2024-07-24
Last modified: 2024-08-01

Vendor information

Vendor: Connectivity Standards Alliance
Product: Matter

All Connectivity Standards Alliance vulnerabilities

Score

6.5 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 4.4.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Denial of Service

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 1.1
Fixed
1.1

Scoring System

CVSS v4.0

Not available

CVSS v3.1

6.5 Medium

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Metric breakdown
Attack Vector	Adjacent
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	None
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).