CVE-2018-3926 json
An exploitable integer underflow vulnerability exists in the ZigBee firmware update routine of the hubCore binary of the Samsung SmartThing…
published 2018-08-28 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-15712
- cvss
- 5.3
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 36%
- public exploits
- 0
- none known
Summary
An exploitable integer underflow vulnerability exists in the ZigBee firmware update routine of the hubCore binary of the Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. The hubCore process incorrectly handles malformed files existing in its data directory, leading to an infinite loop, which eventually causes the process to crash. An attacker can send an HTTP request to trigger this vulnerability.
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2018-0593 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 5.3 | CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H |
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Affected products
- Talos Samsung
Classification
- Weakness
-
- CWE-191 Integer Underflow (Wrap or Wraparound)
References
-
talosintelligence.com
/vulnerability_reports/TALOS-2018-0593
exploit, third-party-advisory
-
securityfocus.com
/bid/105162
vdb-entry, broken-link, third-party-advisory
Sources
- CVE List CVE-2018-3926
- NVD CVE-2018-3926
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