CVE-2024-3297: Session establishment lock-up during replay of CASE Sigma1 messages

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-07-24 · updated 2026-06-17
Weakness: CWE-400

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.

Affected products

Connectivity Standards Alliance Matter: all versions

References

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

Get alerted when CVE-2024-3297 or the next vulnerability affects your stack