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CVE-2018-3867

30
FAUCET Score

CVE-2018-3867 describes a critical stack-based buffer overflow vulnerability in the Samsung SmartThings Hub STH-ETH-250 (firmware version 0.20.17). This flaw, residing in the video-core's HTTP server, allows an attacker to trigger a buffer overflow by sending crafted HTTP requests, exploiting incorrect handling of smart camera responses. With a CVSS score of 9.9, this vulnerability presents a critical risk, enabling full compromise of confidentiality, integrity, and availability with low attack complexity and requiring only low privileges. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
0.20.17CPE matchmatch criteria
cpe:2.3:o:samsung:sth-eth-250_firmware:0.20.17:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.9CRITICAL

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.1
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.01%
Probability of exploitation in next 30 days
EPSS Percentile
78.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0201 is in the 83rd percentile among its peer group of 1,128 CVEs.

Social Chatter

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.

Media 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

Remediation records are not available for this CVE.

References

talosintelligence.com / vulnerability_reports/TALOS-2018-0549
ExploitThird Party Advisory