CVE-2025-2233

Samsung SmartThings Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability

Published Mar 11, 2025 CVSS 3.0 · 8.8 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-7555 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.
History
Type Values Removed Values Added
CPEs cpe:2.3:a:samsung:smartthings:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Samsung SmartThings Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability
Weaknesses CWE-347
References
Metrics cvssV3_0

{'score': 8.8, 'vector': 'CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
zdi
Published
Updated
Feb 26, 2026, 7:09 PM
Reserved
Mar 11, 2025, 10:30 PM
Status
Analyzed
Published
Mar 11, 2025, 11:15 PM
Modified
Jun 17, 2026, 9:06 AM