CRITICAL

CVE-2018-3856

CVSS v3

9.9

CRITICAL

EPSS Score

3.4 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2018-3856 yet.

Full record on NVD

Description

An exploitable vulnerability exists in the smart cameras RTSP configuration of the Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. The device incorrectly handles spaces in the URL field, leading to an arbitrary operating system command injection. An attacker can send a series of HTTP requests to trigger this vulnerability.

Technical details

Published: 2018-08-23

Frequently asked questions

What is CVE-2018-3856?

Is CVE-2018-3856 actively exploited?

Active exploitation of CVE-2018-3856 has not been confirmed. Its EPSS score was 3.4% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-3856?

CVE-2018-3856 has a CVSS v3 base score of 9.9 (CRITICAL severity).

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