CVE-2025-40630 — MEDIUM (6.1)

Vulnerability Description

Open redirection vulnerability in IceWarp Mail Server affecting version 11.4.0. This vulnerability allows an attacker to redirect a user to any domain by sending a malicious URL to the victim, for example “ https://icewarp.domain.com//<MALICIOUS_DOMAIN>/%2e%2e” https://icewarp.domain.com///%2e%2e” . This vulnerability has been tested in Firefox.

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Icewarp	Mail Server	11.4.0

Related Weaknesses (CWE)

CWE-601

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-icewThird Party Advisory

FAQ

What is CVE-2025-40630?

CVE-2025-40630 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Open redirection vulnerability in IceWarp Mail Server affecting version 11.4.0. This vulnerability allows an attacker to redirect a user to any domain by sending a malicious URL to the victim, for exa...

How severe is CVE-2025-40630?

CVE-2025-40630 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-40630?

Check the references section above for vendor advisories and patch information. Affected products include: Icewarp Mail Server.