CVE-2025-2233 HIGH

CVE-2025-2233: Samsung SmartThings Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability

Vendor Samsung
Product SmartThings
Weakness CWE-347
Published March 11, 2025
Last update February 26, 2026
View on NVD All CVEs

CVSS base score

8.8/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Samsung SmartThings Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Samsung SmartThings. Authentication is not required to exploit this vulnerability. The specific flaw exists within the Hub Local API service, which listens on TCP port 8766 by default. The issue results from the lack of proper verification of a cryptographic signature. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-25615.

Key dates

02Disclosure timeline

March 11, 2025 CVE published
February 26, 2026 Record updated