PT-2025-21633 · Icewarp · Icewarp Mail Server

B3Xal · Published 2025-05-16 · Updated 2025-07-23 · CVE-2025-40630

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: IceWarp Mail Server version 11.4.0

Description: The issue is an open redirection vulnerability that allows an attacker to redirect a user to any domain by sending a malicious URL to the victim. For example, an attacker could use a URL like "https://icewarp.domain.com///%2e%2e" or "https://icewarp.domain.com///%2e%2e" to exploit this issue. This vulnerability has been tested in Firefox.

Recommendations: For IceWarp Mail Server version 11.4.0, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Open Redirect

Weakness Enumeration

CWE-601

Related Identifiers

CVE-2025-40630

Affected Products

Icewarp Mail Server

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2025-40630 · Security Note
• https://osv.dev/vulnerability/CVE-2025-40630 · Vendor Advisory
• https://incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-icewarp-mail-server · Note
• https://twitter.com/CVEnew/status/1923600402974482698 · Twitter Post
• https://twitter.com/pdnuclei_bot/status/1948095791983411275 · Twitter Post
• https://t.me/cvetracker/24013 · Telegram Post