What is CVE-2018-3926?

CVE-2018-3926 is a medium-severity vulnerability in Samsung Sth-Eth-250, classified under Integer Underflow. CVSS score: 5.5/10. Published 2018-08-28.

How severe is CVE-2018-3926?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Integer overflow in Samsung Sth-Eth-250

CVE-2018-3926

An exploitable integer underflow vulnerability exists in the ZigBee firmware update routine of the hubCore binary of the Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. The hubCore process incorrectly handles malformed files existing in its data directory, leading to an infinite loop, which eventually causes the process to crash. An attacker can send an HTTP request to trigger this vulnerability.

EPSS: 0.004 (34.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Samsung Sth-eth-250
Samsung Sth-eth-250_firmware — versions 0.20.17
Talos Samsung — versions Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17

Weakness classification (CWE)

CWE-191 — Integer Underflow

References

talos-cna@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-3926?: CVE-2018-3926 is a medium-severity vulnerability in Samsung Sth-Eth-250, classified under Integer Underflow. CVSS score: 5.5/10. Published 2018-08-28.
How severe is CVE-2018-3926?: Medium severity. CVSS v3 base score is 5.5 out of 10.