CVE-2025-40631

LOW
2025-05-16 [email protected]
2.0
CVSS 4.0

CVSS Vector

CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
A
Scope
X

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 18:42 vuln.today
CVE Published
May 16, 2025 - 11:15 nvd
LOW 2.0

Tags

RCE Mail Server

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.

Analysis

HTTP host header injection vulnerability in Icewarp Mail Server affecting version 11.4.0. Rated low severity (CVSS 2.0), this vulnerability is no authentication required. No vendor patch available.

Technical Context

This vulnerability is classified under CWE-644. 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. Affected products include: Icewarp Mail Server. Version information: version 11.4.0..

Affected Products

Icewarp Mail Server.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

10
Low Medium High Critical
KEV: 0
EPSS: +0.2
CVSS: +10
POC: 0

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CVE-2025-40631 vulnerability details – vuln.today
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