CVE-2025-40631

Published: May 16, 2025Updated: Oct 9, 2025 Sources: CVE List NVDCWE-644

NVD MITRE

6.1CVSSMEDIUM

EPSS Score

Description

HTTP host header injection vulnerability in Icewarp Mail Server affecting version 11.4.0. By modifying the Host header and adding a payload, arbitrary JavaScript code can be executed on page load. The user must interact with a malicious link to be redirected.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:RUser Interaction

Required

Scope

S:CScope

Changed

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:NAvailability

None

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Weaknesses

CWE-644

Affected Products

Icewarp Mail Server Icewarp

On-prem

Communications / email-server-client

mail server icewarp

On-premWeb App

Communications / email-server-client

icewarpcommercialCommunicationsaka icewarp web mail, icewarp mail server

Exploitability

Official Patch Available

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-icewarp-mail-server

incibe.es

Timeline

Published

May 16, 2025

Last Updated

Oct 9, 2025

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