Open Redirect in Icewarp Mail Server
CVE-2025-40630
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//<MAL…
Vulnerability class: Open Redirect
EPSS: 0.004 (34.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Icewarp Mail Server — versions 11.4.0
- Icewarp Mail_server — versions 11.4.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve-coordination@incibe.es (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-40630?
- CVE-2025-40630 is a medium-severity vulnerability in Icewarp Mail Server, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2025-05-16.
- How severe is CVE-2025-40630?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2025-40630 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.