What is CVE-2018-3863?

CVE-2018-3863 is a critical-severity vulnerability in Samsung Smartthings Hub Sth-eth-250, classified under Out-of-bounds Write. CVSS score: 9.9/10. Published 2018-08-23.

How severe is CVE-2018-3863?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Buffer overflow in Samsung Smartthings Hub Sth-eth-250

CVE-2018-3863

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 r…

Vulnerability class: Buffer Overflow

EPSS: 0.017 (74.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Samsung Smartthings Hub Sth-eth-250 — versions Firmware version 0.20.17
Samsung Sth-eth-250
Samsung Sth-eth-250_firmware — versions 0.20.17

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-3863?: CVE-2018-3863 is a critical-severity vulnerability in Samsung Smartthings Hub Sth-eth-250, classified under Out-of-bounds Write. CVSS score: 9.9/10. Published 2018-08-23.
How severe is CVE-2018-3863?: Critical severity. CVSS v3 base score is 9.9 out of 10.