CVE-2018-3925

Severity: critical (CVSS 9.9 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-08-23 · updated 2026-06-17
Weakness: CWE-119

Description

An exploitable buffer overflow vulnerability exists in the remote video-host communication of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250 devices with firmware version 0.20.17. The video-core process insecurely parses the AWSELB cookie while communicating with remote video-host servers, leading to a buffer overflow on the heap. An attacker able to impersonate the remote HTTP servers could trigger this vulnerability.

Affected products

Samsung SmartThings Hub STH-ETH-250: 0.20.17

References

https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0591
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0591

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