CVE-2018-3866 is a critical buffer overflow vulnerability affecting the Samsung SmartThings Hub STH-ETH-250 (firmware version 0.20.17). An authenticated attacker can exploit this by sending a crafted JSON payload with an overly long 'callbackUrl' to the video-core HTTP server, leading to a stack-based buffer overflow. This vulnerability has a CVSS score of 9.9 (CRITICAL), indicating high impact on confidentiality, integrity, and availability, and can be exploited remotely with low attack complexity. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the high severity warrants attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
0.20.17CPE matchmatch criteria | cpe:2.3:o:samsung:sth-eth-250_firmware:0.20.17:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 1.0 Bluesky, 0.5 Mastodon, and 1.6 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.