CVE-2018-6892

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because EPSS predicts 90% probability of exploitation within the next 30 days (top 0.4% of all CVEs). NVD baseline CVSS 9.8 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Weaponized
9.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 94%
CISA-KEV: Not listedEPSS: 94%CVSS: 9.8Exploit: NoneExposed: 0

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

An issue was discovered in CloudMe before 1.11.0. An unauthenticated remote attacker that can connect to the "CloudMe Sync" client application listening on port 8888 can send a malicious payload causing a buffer overflow condition. This will result in an attacker controlling the program's execution flow and allowing arbitrary code execution.

CVSS v3
9.8
EG Score
9.8(high)
EPSS
99.8%
KEV
Not listed

Published

February 11, 2018

Last Modified

November 21, 2024

Advisory Details (6)

Auto-updated Jun 7, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

CloudMe 1.11.2 - Buffer Overflow ROP (DEP,ASLR) - Windows local Exploit

https://www.exploit-db.com/exploits/48840
generic🟡 PoC Available

CloudMe Sync 1.11.2 Buffer Overflow - WoW64 (DEP Bypass) - Windows_x86-64 remote Exploit

https://www.exploit-db.com/exploits/46250/
generic🟡 PoC Available

Cloudme 1.9 - Buffer Overflow (DEP) (Metasploit) - Windows_x86-64 remote Exploit

https://www.exploit-db.com/exploits/45197/
generic🟡 PoC Available

CloudMe Sync 1.10.9 - Stack-Based Buffer Overflow (Metasploit) - Windows remote Exploit

https://www.exploit-db.com/exploits/44175/
generic🟡 PoC Available

CloudMe Sync < 1.11.0 - Buffer Overflow - Windows remote Exploit

https://www.exploit-db.com/exploits/44027/
generic
http://hyp3rlinx.altervista.org/advisories/CLOUDME-SYNC-UNAUTHENTICATED-REMOTE-BUFFER-OVERFLOW.txt

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 0× in last 7d / 13× 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. 2026-06-23 21:30 UTCEPSS rescore
  2. 2026-06-23 21:30 UTCEPSS rescore
  3. 2026-06-21 01:57 UTCEPSS rescore
  4. 2026-06-21 01:57 UTCEPSS rescore
  5. 2026-06-17 17:50 UTCEPSS rescore
  6. 2026-06-15 17:45 UTCEPSS rescore
  7. 2026-06-14 23:15 UTCEPSS rescore
  8. 2026-06-14 23:15 UTCEPSS rescore
  9. 2026-06-13 22:58 UTCEPSS rescore
  10. 2026-06-10 22:16 UTCEPSS rescore
  11. 2026-06-10 13:19 UTCEPSS rescore
  12. 2026-06-07 15:22 UTCEPSS rescore
  13. 2026-06-07 15:22 UTCEPSS rescore
  14. 2026-06-06 13:45 UTCEPSS rescore
  15. 2026-06-06 13:45 UTCEPSS rescore
  16. 2026-06-05 22:45 UTCEPSS rescore
  17. 2026-06-05 22:45 UTCEPSS rescore
  18. 2026-06-02 20:11 UTCEPSS rescore
  19. 2026-06-01 13:50 UTCEPSS rescore
  20. 2026-05-28 13:43 UTCEPSS rescore
  21. 2026-05-28 13:42 UTCEPSS rescore
  22. 2026-05-28 11:40 UTCEG score recompute
  23. 2026-05-28 11:40 UTCGHSA enrichment
  24. 2026-05-27 13:38 UTCEPSS rescore

Publicly available exploits

(5 references)

Working exploit code is in the public domain (1 Metasploit module) (4 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-46250
    First seen Jan 28, 2019

    CloudMe Sync 1.11.2 Buffer Overflow - WoW64 (DEP Bypass)

    Open source ↗
  • Exploit-DBEDB-45197
    First seen Aug 14, 2018

    Cloudme 1.9 - Buffer Overflow (DEP) (Metasploit)

    Open source ↗
  • Exploit-DBEDB-44175✓ verified
    First seen Feb 26, 2018

    CloudMe Sync 1.10.9 - Stack-Based Buffer Overflow (Metasploit)

    Open source ↗
  • Exploit-DBEDB-44027✓ verified
    First seen Feb 13, 2018

    CloudMe Sync < 1.11.0 - Buffer Overflow

    Open source ↗
  • Metasploitexploit/windows/misc/cloudme_sync✓ verified
    First seen Jan 17, 2018

    CloudMe Sync v1.10.9

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2018-6892?
CVE-2018-6892 is a critical vulnerability published on February 11, 2018. An issue was discovered in CloudMe before 1.11.0. An unauthenticated remote attacker that can connect to the "CloudMe Sync" client application listening on port 8888 can send a malicious payload causing a buffer overflow condition. This will result in an attacker controlling the program's execution…
When was CVE-2018-6892 disclosed?
CVE-2018-6892 was first published in the National Vulnerability Database on February 11, 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-2018-6892 actively exploited?
CVE-2018-6892 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-6892?
CVE-2018-6892 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2018-6892?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-6892, 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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