What is the CVSS score of CVE-2020-37070?

CVE-2020-37070 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Is there a public PoC exploit available for CVE-2020-37070?

Yes, a public proof-of-concept exploit is available for CVE-2020-37070. Prioritise patching immediately. EPSS: 0.3%.

How to fix or mitigate CVE-2020-37070?

Within 24 hours: Identify all CloudMe 1.11.2 instances across the organization and isolate affected systems from production networks if business continuity permits. Within 7 days: Implement compensating controls (network segmentation, WAF rules blocking port 8888, disable CloudMe service if non-critical). Within 30 days: Migrate to an alternative solution or verified patched version; conduct forensic analysis for signs of compromise; implement continuous vulnerability scanning for similar exposures.

CVE-2020-37070

CRITICAL

Classic Buffer Overflow (CWE-120)

2026-02-03 disclosure@vulncheck.com

RCE Buffer Overflow

9.8

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-120 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Buffer copy size validation MITRE ATT&CK 1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS 9.8 with PoC. CloudMe's sync protocol listens on the network, enabling remote exploitation without user interaction.
Exploit ScenarioDerived	An attacker sends crafted sync packets to the CloudMe client's listening port, triggering the overflow and achieving code execution.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

CloudMe 1.11.2 cloud sync application has a buffer overflow enabling remote code execution through the network sync protocol.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 21:54 CVSS 9.8

Buffer overflow in CloudMe sync enables RCE via network protocol.

RemediationAI

Update CloudMe. Restrict network access to the sync port.

Affected ProductsAI

CloudMe 1.11.2

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CloudMe 1.11.2 has a CWE-120 buffer overflow in its network communication handling that allows remote attackers to execute code by sending crafted sync packets.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

PoC Detected

Feb 04, 2026 - 16:33 vuln.today

Public exploit code

CVE Published

Feb 03, 2026 - 22:16 nvd

CRITICAL 9.8

DescriptionCVE.org

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.

Executive ViewAI

Why It Matters

CloudMe 1.11.2 contains a critical remote code execution vulnerability (CVSS 9.8) that allows unauthenticated attackers to take complete control of affected systems through the network. Public exploits are already available, creating immediate risk to any organization running this software. Urgent action is required to prevent potential data breaches, system compromise, and operational disruption.

Business Impact: Severe

Compensating Controls

Network segmentation—restrict access to port 8888 via firewall rules; disable CloudMe service if operationally feasible; deploy WAF/IDS signatures to detect malicious payloads targeting CVE-2020-37070; implement application whitelisting on systems running CloudMe; monitor process execution and network connections for anomalous activity; restrict outbound connections from CloudMe hosts to prevent command-and-control communication.

Threat Intelligence Overview

EPSS Score

0.3%

Top 52% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS

Exploit-DB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC Yes

EPSS 0.3%

Patch available No

Active threat No

Deciding rule

CRITICAL severity + public POC available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

Very High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +49

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.