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///%2e%2e” https://icewarp.domain.com///%2e%2e” . This vulnerability has been tested in Firefox.

Classification

CVE ID: CVE-2025-40630

CVSS Base Severity: MEDIUM

CVSS Base Score: 5.1

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N

Affected Products

Vendor: Icewarp

Product: Icewarp Mail Server

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 16.99% (scored less or equal to compared to others)

EPSS Date: 2025-06-14 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-40630
https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-icewarp-mail-server

Timeline