CVE-2018-3866
moderate-risk
Published 2018-08-23
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.
Do I need to act?
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0.46% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.9/10
Critical
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
40
/ 100
moderate-risk
Severity
33/34 · Critical
Exploitability
2/34 · Minimal
Exposure
5/34 · Minimal