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CVE-2026-25602

Quick assessment

Affected
Mesalvo Meona Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mesalvo Meona Client Launcher Component和Mesalvo Meona Server Component都是Mesalvo公司的产品。Mesalvo Meona Client Launcher Component是一个面向医疗信息系统客户端启动与应用接入的组件。Mesalvo Meona Server Component是一个面向医院临床工作流与患者数据管理的服务端组件。 Mesalvo Meona Client Launcher Component和Mesalvo M

CVSS 2.3 · Low EPSS 0.09% · P0

Possible ATT&CK Techniques 1 AI

T1534 · Internal Spearphishing

Affected Version Matrix 6

VendorProduct Version RangeStatus
Mesalvo Meona Client 2024.10 affected
2025.04< 2025.04.24 affected
2026.03< 2026.03.02 affected
Mesalvo Meona Server 2024.10 affected
2025.04< 2025.04.24 affected
2026.03< 2026.03.02 affected
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I. Basic Information for CVE-2026-25602

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient Verification of Data Authenticity in the feedback function of Mesalvo MEONA (MEONA Client and MEONA Server). The MEONA Client transmits the recipient address of a feedback report to the MEONA Server, and the server sends the report to the transmitted address instead of the address configured on the server. The feedback function is available only in the MEONA administration area, which requires one of the administrative roles ADMINISTRATOR, SUPERADMINISTRATOR or TYPIST (catalogue editing), or the PHARMACIST role holding the PHARMACY_ADMINISTRATOR right, assigned explicitly by the operating hospital's administrators. Such a user who modifies the client request can cause the MEONA Server to send a message with content of the user's choosing, from the sender address configured on the server, to a recipient of the user's choosing, within the limits permitted by the operator's mail relay. The message can be used for social engineering because it appears to originate from an internal hospital system. Exploitation requires a MEONA account with one of the administrative roles named above and access to the operating hospital's internal network; MEONA is operated exclusively within closed hospital networks without exposure to the public Internet, and where a hospital permits remote access to that network at all, it is only through the hospital's own remote-access infrastructure (e.g. VPN) under the hospital's control. The message contains only the recipient, subject and text entered by the user; no data of other users or patients is disclosed. Mesalvo is not aware of any exploitation outside the reported security test. This issue affects MEONA Client and MEONA Server in versions 2024.10, 2025.04 (before 2025.04.24) and 2026.03 (before 2026.03.02). MEONA 2025.04.24 and 2026.03.02 (planned Q4 2026) enforce the configured recipient address on the server. Operators can restrict at their mail relay which recipients the MEONA sender address may reach.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
Source: CVE Program / CVE List V5
Vulnerability Title
Mesalvo Meona Client Launcher Component和Mesalvo Meona Server Component 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mesalvo Meona Client Launcher Component和Mesalvo Meona Server Component都是Mesalvo公司的产品。Mesalvo Meona Client Launcher Component是一个面向医疗信息系统客户端启动与应用接入的组件。Mesalvo Meona Server Component是一个面向医院临床工作流与患者数据管理的服务端组件。 Mesalvo Meona Client Launcher Component和Mesalvo M
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mesalvo Meona Server 2024.10 -
Mesalvo Meona Client 2024.10 -

II. Public POCs for CVE-2026-25602

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III. Intelligence Information for CVE-2026-25602

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Security Blog Posts for CVE-2026-25602 (1)

Other References for CVE-2026-25602 (1)

Same Patch Batch · Mesalvo · 2026-05-20 · 4 CVEs total

CVE-2026-22314 7.9 HIGH Mesalvo Meona Client Launcher Component和Mesalvo Meona Server Component 代码注入漏洞
CVE-2026-0856 7.8 HIGH Mesalvo Meona Client Launcher Component和Mesalvo Meona Server Component 访问控制错误漏洞
CVE-2026-0857 4.4 MEDIUM Mesalvo Meona Client Launcher Component和Mesalvo Meona Server Component 安全漏洞

IV. Related Vulnerabilities

Same vendor: Mesalvo
Same weakness: CWE-345

V. Comments for CVE-2026-25602

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