TI-2025-27101 Aliases CVE-2025-40630 GHSA-hf55-g8pm-mm27

Open redirect in Icewarp Mail Server

LOW 24CWE-601Published 2025-05-16 · Updated 2025-05-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: Active
Attack complexity: Low
Attack requirements: None
Impact type: Spoofing
Confidentiality · integrity · availability: None · None · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-601.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00496 42nd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
IceWarp	Icewarp Mail Server	11.4.0	—	No fix listed	CNA

Icewarp Mail Server VendorIceWarp Affected 11.4.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:icewarp:mail_server:11.4.0:::::::*	11.4.0	Vulnerable	IceWarp

cpe:2.3:a:icewarp:mail_server:11.4.0:*:*:*:*:*:*:* Versions 11.4.0 Vulnerable ·IceWarp

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-40630
2026-10-03 Alias added: GHSA-hf55-g8pm-mm27

References

Advisory 1

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-icewarp-mail-server

TI-2023-20749 IceWarp Mail Server v10.4.5 was discovered to contain a local file inclusion (LFI)… CVSS 3.1CRITICAL 9.8
TI-2015-01363 Multiple directory traversal vulnerabilities in IceWarp Mail Server before 11.2 allow… CVSS 3.0HIGH 7.5
TI-2019-09404 IceWarp Mail Server through 10.4.4 is prone to a local file inclusion vulnerability via… CVSS 3.0HIGH 7.5
TI-2021-14809 Open Redirect vulnerability exists in IceWarp MailServer IceWarp Server Deep Castle 2… CVSS 3.1MEDIUM 6.1
TI-2020-11018 IceWarp Email Server 12.3.0.1 allows remote attackers to upload JavaScript files that are… CVSS 3.1HIGH 8.8
TI-2011-03155 server/webmail.php in IceWarp WebMail in IceWarp Mail Server before 10.3.3 allows remote… CVSS 2.0MEDIUM 6.4

See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences