CVE-2025-40631
HTTP host header injection vulnerability in IceWarp Mail Server
Vexday Risk Score
8Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 2EPSS 0.2%KEV nãoPoC —Patch —
Lifecycle
16 May 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
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
Affected products
Icewarp · Icewarp Mail ServerWant to know if your infrastructure is exposed to this?
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