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Tue, 15 Sep 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Cross‑Tenant Email Spoofing via Unrestricted MAIL FROM in N‑able Mail Assure |
Mon, 14 Sep 2026 22:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Design-level Authorization Flaw Enabling Cross‑Tenant Email Spoofing |
Mon, 14 Sep 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 14 Sep 2026 12:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Design-level Authorization Flaw Enabling Cross‑Tenant Email Spoofing |
Mon, 14 Sep 2026 01:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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Mon, 14 Sep 2026 00:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | N-able Mail Assure through April 2026 contains a design-level authorization flaw that allows an authenticated SMTP user to send outbound email using MAIL FROM addresses belonging to other tenants. When connecting to the SMTP TCP port and performing SMTP AUTH with valid credentials, the server accepts arbitrary sender domains without enforcing any domain-to-account binding. As a result, an attacker from any tenant can impersonate other tenant domains, producing messages that pass SPF and DMARC validation. NOTE: N-able's position is that the behavior is intended functionality of its shared SMTP relay architecture and that the service does not represent that it enforces per-tenant sender-domain binding. | |
| Weaknesses | CWE-290 | |
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-09-14T18:04:49.403Z
Reserved: 2025-12-19T00:00:00.000Z
Link: CVE-2025-68624
Updated: 2026-09-14T00:23:07.359Z
Status : Received
Published: 2026-09-14T01:16:27.220
Modified: 2026-09-14T19:17:14.070
Link: CVE-2025-68624
No data.
OpenCVE Enrichment
Updated: 2026-09-15T16:15:15Z