CVE-2018-3856

CRITICALNVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.9
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 9.9Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

An exploitable vulnerability exists in the smart cameras RTSP configuration of the Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. The device incorrectly handles spaces in the URL field, leading to an arbitrary operating system command injection. An attacker can send a series of HTTP requests to trigger this vulnerability.

CVSS v3
9.9
EG Score
9.9(medium)
EPSS
87.7%
KEV
Not listed

Published

August 23, 2018

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Jul 16, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

TALOS-2018-0539 || Cisco Talos Intelligence Group - Comprehensive Threat Intelligence

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0539

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 48× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-16 16:59 UTCEPSS rescore
  2. 2026-07-16 16:59 UTCEPSS rescore
  3. 2026-07-15 16:55 UTCEPSS rescore
  4. 2026-07-15 16:55 UTCEPSS rescore
  5. 2026-07-15 01:56 UTCEPSS rescore
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  7. 2026-07-13 22:27 UTCEPSS rescore
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  9. 2026-07-13 06:10 UTCEPSS rescore
  10. 2026-07-12 05:43 UTCEPSS rescore
  11. 2026-07-11 08:24 UTCEPSS rescore
  12. 2026-07-09 19:06 UTCEPSS rescore
  13. 2026-07-08 15:11 UTCEPSS rescore
  14. 2026-07-07 13:42 UTCEPSS rescore
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  16. 2026-07-06 16:24 UTCEPSS rescore
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  18. 2026-07-06 02:20 UTCEPSS rescore
  19. 2026-07-05 02:27 UTCEPSS rescore
  20. 2026-07-04 06:28 UTCEPSS rescore
  21. 2026-07-04 06:28 UTCEPSS rescore
  22. 2026-07-02 16:54 UTCEPSS rescore
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  25. 2026-06-30 23:20 UTCEPSS rescore
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  1. 2026-06-30 23:19 UTCEPSS rescore
  2. 2026-06-29 14:03 UTCEPSS rescore
  3. 2026-06-28 14:04 UTCEPSS rescore
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  6. 2026-06-27 03:06 UTCEPSS rescore
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  8. 2026-06-25 13:47 UTCEPSS rescore
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  15. 2026-06-22 14:23 UTCEPSS rescore
  16. 2026-06-21 01:57 UTCEPSS rescore
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  18. 2026-06-19 19:23 UTCEPSS rescore
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  20. 2026-06-18 17:50 UTCEPSS rescore
  21. 2026-06-18 17:50 UTCEPSS rescore
  22. 2026-06-17 17:50 UTCEPSS rescore
  23. 2026-06-17 17:50 UTCEPSS rescore
  24. 2026-06-16 17:50 UTCEPSS rescore
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  26. 2026-06-15 17:45 UTCEPSS rescore
  27. 2026-06-14 23:15 UTCEPSS rescore
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  29. 2026-06-13 22:58 UTCEPSS rescore
  30. 2026-06-12 23:09 UTCEPSS rescore
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  32. 2026-06-11 13:57 UTCEPSS rescore
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  35. 2026-06-08 14:14 UTCEPSS rescore
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  37. 2026-06-07 15:22 UTCEPSS rescore
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  39. 2026-06-06 13:45 UTCEPSS rescore
  40. 2026-06-06 13:45 UTCEPSS rescore
  41. 2026-06-05 22:45 UTCEPSS rescore
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  43. 2026-06-05 06:08 UTCEPSS rescore
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  45. 2026-06-04 13:10 UTCEPSS rescore
  46. 2026-06-02 20:11 UTCEPSS rescore
  47. 2026-06-02 20:11 UTCEPSS rescore
  48. 2026-06-01 13:50 UTCEPSS rescore
  49. 2026-06-01 13:50 UTCEPSS rescore
  50. 2026-05-31 22:29 UTCEPSS rescore
  51. 2026-05-31 00:14 UTCEPSS rescore
  52. 2026-05-31 00:14 UTCEPSS rescore
  53. 2026-05-29 13:41 UTCEPSS rescore
  54. 2026-05-28 13:42 UTCEPSS rescore
  55. 2026-05-28 13:42 UTCEPSS rescore
  56. 2026-05-28 03:49 UTCEG score recompute
  57. 2026-05-28 03:49 UTCGHSA enrichment
  58. 2026-05-27 13:38 UTCEPSS rescore
  59. 2026-05-27 13:38 UTCEPSS rescore
  60. 2026-05-26 13:42 UTCEPSS rescore
  61. 2026-05-26 13:42 UTCEPSS rescore
  62. 2026-05-26 07:17 UTCEPSS rescore
  63. 2026-05-26 07:17 UTCEPSS rescore
  64. 2026-05-25 02:09 UTCOSV refresh

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Frequently asked(5)

What is CVE-2018-3856?
CVE-2018-3856 is a critical vulnerability published on August 23, 2018. An exploitable vulnerability exists in the smart cameras RTSP configuration of the Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. The device incorrectly handles spaces in the URL field, leading to an arbitrary operating system command injection. An attacker can send a series of…
When was CVE-2018-3856 disclosed?
CVE-2018-3856 was first published in the National Vulnerability Database on August 23, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-3856 actively exploited?
CVE-2018-3856 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 87.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-3856?
CVE-2018-3856 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2018-3856?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-3856, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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