Samsung SmartThings Hub STH-ETH-250 0.20.17 Video-Core Process HTTP Request memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability classified as critical was found in Samsung SmartThings Hub STH-ETH-250 0.20.17 (Router Operating System). Affected by this vulnerability is an unknown function of the component Video-Core Process. The manipulation as part of a HTTP Request leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

On Samsung SmartThings Hub STH-ETH-250 devices with firmware version 0.20.17, the video-core process insecurely extracts the fields from the "shard" table of its SQLite database, leading to a buffer overflow on the stack. An attacker can send an HTTP request to trigger this vulnerability. The strcpy call overflows the destination buffer, which has a size of 16 bytes. An attacker can send an arbitrarily long "region" value in order to exploit this vulnerability.

The bug was discovered 07/26/2018. The weakness was presented 08/23/2018 (Website). The advisory is shared at This vulnerability is known as CVE-2018-3917 since 01/01/2018. The exploitation appears to be easy. The attack can be launched remotely. The successful exploitation requires a single authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 28 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See VDB-123192 for similar entry.








  • end of life (old version)

CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.9
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Talos): 🔍



VulDB Base Score: 🔍
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Class: Memory corruption
CWE: CWE-119

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Threat Intelligenceinfo

Interest: 🔍
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Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍


01/01/2018 🔍
07/26/2018 +205 days 🔍
08/23/2018 +27 days 🔍
08/23/2018 +0 days 🔍
08/24/2018 +1 days 🔍
05/04/2023 +1714 days 🔍



Status: Not defined

CVE: CVE-2018-3917 (🔍)
See also: 🔍


Created: 08/24/2018 08:12 AM
Updated: 05/04/2023 12:00 PM
Changes: 08/24/2018 08:12 AM (60), 03/17/2020 08:10 PM (1), 05/04/2023 12:00 PM (14)
Complete: 🔍
Cache ID: 34:21B:40


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