CVE-2025-2233

High

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.

SeverityHigh
CVSS8.8
Exploit probability—
ProductSamsung Smartthings
PublishedMar 11, 2025
First seenMar 11, 2025
Weakness typeCWE-347CWE-347

How to fix

Update
  • samsung smartthings0.55.5 or later

Affected products

ProductAffected versionsFixed in
samsung smartthingsv < 0.55.50.55.5

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CVE-2025-2233 · Samsung Smartthings · Dark Radar