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P4
CVE-2026-114478: hMailServer 6.0.0 through 6.3.6
CVE-2026-114478. CVSS 3.1 base score 5.9 (MEDIUM, Vendor/CNA).
Affected technology
hMailServer · 6.0.0 through 6.3.6
Progressive Robot Ltd
Description’s affected range: through 6.3.6
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
What an attacker can do
A remote unauthenticated attacker can have mail they write, naming in its From an address at a domain the server hosts, delivered to other receivers as passing that domain's DMARC policy. Vendor/CNA’s CVSS 3.1 assessment (base score 5.9/10) rates confidentiality and availability impact as none; integrity impact as high.
- CWE
- CWE-441
- CCR priority
- 23.6 /100 (P4)
- CVSS 3.1
- 5.9 /10 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N · Vendor/CNA
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-21 16:36:47.356398+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-114478.html