Critical severity9.9NVD Advisory· Published Aug 23, 2018· Updated Jun 17, 2026
CVE-2018-3866
CVE-2018-3866
Description
An exploitable buffer overflow vulnerability exists in the samsungWifiScan handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250 - 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. The strcpy at [8] overflows the destination buffer, which has a size of 40 bytes. An attacker can send an arbitrarily long 'callbackUrl' value in order to exploit this vulnerability.
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Affected products
2- Range: =0.20.17
- Range: Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17
Patches
Vulnerability mechanics
References
1- talosintelligence.com/vulnerability_reports/TALOS-2018-0548nvdExploitThird Party Advisory
News mentions
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