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CVE-2018-3902

CRITICAL

An exploitable buffer overflow vulnerability exists in the camera "replace" feature of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250 devices with firmware version 0.20.17. The video-core process incorrectly extracts the URL field from a user-controlled JSON payload, leading to a buffer overflow on the stack. An attacker can send an HTTP request to trigger this vulnerability.

Published: Aug 23, 2018 Modified: Jun 17, 2026
CWE-787

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: LOW User Interaction: NONE Scope: CHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Products (1)

Vendor Product Version
samsung sth-eth-250_firmware 0.20.17

GitHub Security Advisory GHSA-p84x-62mj-7mcj

An exploitable buffer overflow vulnerability exists in the camera "replace" feature of video-core...

Risk Scores

CVSS Score 9.9 / 10
EPSS Score 1.75%

Top 24% most likely to be exploited

Threat Score 40.1 / 100

Data Sources

NVD EPSS GitHub