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Case File

CVE-2018-3863

CRITICAL · CVSS 9.9 EPSS 1.74% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2018-08-23 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

Exhibit — Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2018-3863
Severity
CRITICAL
CVSS
9.9
EPSS
1.74%

Original Filing — NVD 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.