CVE-2025-2233

Samsung SmartThings Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability

HIGH
8.8
CVSS Score
Published: March 11, 2025 at 10:30 PM UTC
Updated: June 17, 2026 at 09:06 AM UTC
1 product affected across 1 vendorSmartThings

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Severity
HIGH8.8
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.55.50.054.00013
Affected range stops below 0.55.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHzdi
Vector?

Quick Info

StatusANALYZED
CWE
CWE-347

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