CVE-2018-3902
CVE-2018-3902 is a critical-severity vulnerability in Samsung Sth-eth-250 Firmware with a CVSS 3.x base score of 9.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Critical (CVSS 3.x base score 9.9)
- CVSS v2: 9.0
- EPSS exploit prediction: 2% (75th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Samsung Sth-eth-250 Firmware
- Published:
- Last modified:
Description
An exploitable buffer overflow vulnerability exists in the camera "replace" feature of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250 devices with firmware version 0.20.17. The video-core process incorrectly extracts the URL field from a user-controlled JSON payload, leading to a buffer overflow on the stack. An attacker can send an HTTP request to trigger this vulnerability.
Frequently asked questions
- What is CVE-2018-3902?
- An exploitable buffer overflow vulnerability exists in the camera "replace" feature of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250 devices with firmware version 0.20.17. The video-core process incorrectly extracts the URL field from a user-controlled JSON payload, leading to a buffer overflow on the stack. An attacker can send an HTTP request to trigger this vulnerability.
- How severe is CVE-2018-3902?
- CVE-2018-3902 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-3902 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-3902?
- CVE-2018-3902 affects Samsung Sth-eth-250 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-3902?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2018-3902 published?
- CVE-2018-3902 was published on 2018-08-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:samsung:sth-eth-250_firmware:0.20.17:*:*:*:*:*:*:*
More vulnerabilities in Samsung Sth-eth-250 Firmware
- CVE-2018-3907 — Critical (CVSS 10.0): An exploitable vulnerability exists in the REST parser of video-core's HTTP server of the Samsung SmartThings Hub…
- CVE-2018-3877 — Critical (CVSS 9.9): An exploitable buffer overflow vulnerability exists in the credentials handler of video-core's HTTP server of Samsung…
- CVE-2018-3874 — Critical (CVSS 9.9): An exploitable buffer overflow vulnerability exists in the credentials handler of video-core's HTTP server of Samsung…
- CVE-2018-3873 — Critical (CVSS 9.9): An exploitable buffer overflow vulnerability exists in the credentials handler of video-core's HTTP server of Samsung…
- CVE-2018-3875 — Critical (CVSS 9.9): An exploitable buffer overflow vulnerability exists in the credentials handler of video-core's HTTP server of Samsung…
- CVE-2018-3904 — Critical (CVSS 9.9): An exploitable buffer overflow vulnerability exists in the camera 'update' feature of video-core's HTTP server of…
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