What is the CVSS score of EUVD-2022-55997?

EUVD-2022-55997 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Is there a patch available for EUVD-2022-55997?

Yes, a patch is available for EUVD-2022-55997. Update the affected software to the latest version immediately.

Hyper Backup Explorer EUVD-2022-55997

| CVE-2022-49042 HIGH

Inclusion of Functionality from Untrusted Control Sphere (CWE-829)

2026-06-03 security@synology.com

GHSA-2wj3-r484-f224

RCE Synology Hyper Backup Explorer

7.8

CVSS 3.1 · Vendor: synology

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Vulnerability Assessment

Weakness	CWE CWE-829 OWASP Top 10:2025 A08:2025 - Software or Data Integrity Failures ASVS 5.0 V15 - Secure Coding and Architecture Trusted source inclusion only
Impact	CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 0.01%.
Exploit ScenarioDerived	Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.0% exploitation probability (EPSS)

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AnalysisAI

An inclusion of functionality from untrusted control sphere vulnerability in MinGW DLL component in Synology Hyper Backup Explorer before 3.0.1-0156 allows local users to execute arbitrary code via. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected VersionsENISA

Synology Hyper Backup Explorer * <3.0.1-0156

Affected Packages

euvd synology_hyper_backup_explorer fix: 3.0.1-0156

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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

Technical ContextAI · show details

This vulnerability is classified under CWE-829. An inclusion of functionality from untrusted control sphere vulnerability in MinGW DLL component in Synology Hyper Backup Explorer before 3.0.1-0156 allows local users to execute arbitrary code via unspecified vectors. Affected products include: Synology Hyper Backup Explorer. Version information: before 3.0.1.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (synology) PRIMARY 7.8 HIGH

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

Primary rating from Vendor (synology) · only source for this CVE.

CVSS VectorVendor: synology

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch available

Jun 03, 2026 - 16:01 EUVD

CVE Published

Jun 03, 2026 - 14:16 cve.org

HIGH 7.8

DescriptionCVE.org

Threat Intelligence Overview

EPSS Score

0.0%

Top 97% exploitable

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

Vulnrichment

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 HIGH

CISA KEV No

Public POC No

EPSS 0.0%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

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.