Vulnerability · Published May 16, 2025 · Assigned by INCIBE
CVE-2025-40631HTTP host header injection vulnerability in IceWarp Mail Server
Low 2.0
In plain English
A low-severity security flaw in Icewarp Mail Server from Icewarp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Severity (CVSS 4.0)2.0Low
Exploit odds (30 days)0.2%top 86.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
HTTP host header injection vulnerability in Icewarp Mail Server affecting version 11.4.0. By modifying the Host header and adding a payload, arbitrary JavaScript code can be executed on page load. The user must interact with a malicious link to be redirected.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Icewarp | Icewarp Mail Server | 11.4.0 |
Weakness: CWE-644 · Vector: CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N