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Classic Buffer OverflowWeakness · CWE-120

CVE-2020-37070

CRITICAL · 9.8 CVSS v3.1 Published 2026-02-03
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Public exploit Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
CloudMe 1.11.2 contains a buffer overflow vulnerability that allows remote attackers to execute arbitrary code through crafted network packets. Attackers can exploit the vulnerability by sending a specially crafted payload to the CloudMe service running on port 8888, enabling remote code execution.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

CloudMe 1.11.2 contains a buffer overflow vulnerability in its network service running on port 8888. Attackers can send specially crafted packets that overflow a buffer, allowing them to overwrite return addresses and execute arbitrary code with the privileges of the CloudMe service.

MitigationUpdate to the latest patched version of CloudMe if available; otherwise, restrict network access to port 8888 via firewall rules or disable the service until a patch can be applied.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify CloudMe installation
    Check for CloudMe installation directories or installed programs (commonly in C:\Program Files\CloudMe or C:\Program Files (x86)\CloudMe on Windows; /opt/CloudMe or ~/CloudMe on Linux)
    Affected if CloudMe software is found on the system
  2. Determine installed version
    Locate version information in the CloudMe installation folder (often in an About dialog, version.txt, or the executable properties)
    Affected if Installed version is 1.11.2 or earlier (no fixed version was provided; treat 1.11.2 as affected)
  3. Verify port 8888 is listening
    Run 'netstat -an | findstr 8888' on Windows or 'netstat -an | grep 8888' on Linux to check if port 8888 is in LISTEN state
    Affected if Port 8888 is open and listening for connections
  4. Assess network exposure
    Confirm whether port 8888 is accessible from untrusted networks (check firewall rules, router port forwarding, or use nmap -p 8888 <target> from an external system)
    Affected if Port 8888 is exposed to untrusted networks or the internet

The system is affected if CloudMe version 1.11.2 or earlier is installed and the service on port 8888 is running and accessible.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update to the latest patched version of CloudMe if available; otherwise, restrict network access to port 8888 via firewall rules or disable the service until a patch can be applied.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-37070 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data