CVE-2026-0856
Deferred Deferred - Pending Action
Improper Access Control in Meona Client Launcher and Server

Publication date: 2026-05-20

Last updated on: 2026-05-20

Assigner: ENISA

Description
Improper Access Control vulnerability in Mesalvo Meona Client Launcher Component, Mesalvo Meona Server Component enables a normal user gaining access to the admin panel. This issue affects Meona Client Launcher Component: through 19.06.2020 15:11:49; Meona Server Component: through 2025.04 5+323020.
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Meta Information
Published
2026-05-20
Last Modified
2026-05-20
Generated
2026-06-10
AI Q&A
2026-05-20
EPSS Evaluated
2026-06-08
NVD
CVE-2026-0856
EUVD
EUVD-2026-31093
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
mesalvo meona_client_launcher_component to 19.06.2020 (exc)
mesalvo meona_server_component to 2025.04 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
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Executive Summary

CVE-2026-0856 is an Improper Access Control vulnerability found in the Mesalvo Meona Client Launcher Component and the Mesalvo Meona Server Component. This flaw allows a normal user to gain unauthorized access to the admin panel, which should normally be restricted to administrators only.

Impact Analysis

This vulnerability can have a significant impact as it allows a normal user to access the admin panel without proper authorization. This could lead to unauthorized changes, data breaches, or disruption of services since the attacker gains high privileges (confidentiality, integrity, and availability are all highly impacted according to the CVSS score).

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