VULNERABILITY INTELLIGENCE

CVE-2018-3863

CVSS score9.9 CRITICAL
EPSS probability1.74%
CISA KEVNot currently listed
Published2018-08-23
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Description

On Samsung SmartThings Hub STH-ETH-250 devices with firmware version 0.20.17, the video-core process incorrectly extracts fields 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. A strcpy overflows the destination buffer, which has a size of 40 bytes. An attacker can send an arbitrarily long "user" value in order to exploit this vulnerability.

Weakness classification

  • CWE-787: Out-of-bounds Write

Primary references