CVE-2018-3894

Name: CVE-2018-3894
Creator: NVD / NIST
Published: 2018-09-21T15:29:00.78+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.80%

Last modified Jun 17, 2026

CVE-2018-3894 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An exploitable buffer overflow vulnerability exists in the /cameras/XXXX/clips handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250-Firmware version 0.20.17. The strncpy call overflows the destination buffer, which has a size of 52 bytes. EPSS estimates a 1.80% chance of exploitation in the next 30 days.

Description

An exploitable buffer overflow vulnerability exists in the /cameras/XXXX/clips handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250-Firmware version 0.20.17. The strncpy call overflows the destination buffer, which has a size of 52 bytes. An attacker can send an arbitrarily long "startTime" value in order to exploit this vulnerability.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.80%

75.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Samsung	Sth-Eth-250 Firmware	0.20.17

References

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0570Exploit, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0570Exploit, Third Party Advisory

Timeline

Published: Sep 21, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-3894?

How severe is CVE-2018-3894?

CVE-2018-3894 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.80% probability of exploitation in the next 30 days.

How do I fix CVE-2018-3894?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-3894?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST