Overview
SmarterTools SmarterMail contains an authentication bypass using an alternate path or channel vulnerability in the password reset API. The force-reset-password endpoint permits anonymous requests and fails to verify the existing password or a reset token when resetting system administrator accounts. This could allow an unauthenticated attacker to supply a target administrator username and a new password to reset the account, resulting in full administrative compromise of the SmarterMail instance.
https://www.smartertools.com/smartermail/release-notes/current ; https://nvd.nist.gov/vuln/detail/CVE-2026-23760
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2026-23760 |
| Vendor / Product | SmarterTools — SmarterMail |
| NVD Published | 2026-01-22 |
| NVD Last Modified | 2026-01-27 |
| CVSS 3.1 Score | 9.8 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Severity | CRITICAL |
| CWE | CWE-288 find similar ↗ |
| CISA KEV Added | 2026-01-26 |
| CISA KEV Deadline | 2026-02-16 |
| Known Ransomware Use | ⚠️ Yes |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Required Action
CISA BOD 22-01 Deadline: 2026-02-16.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Timeline
| Date | Event |
|---|---|
| 2026-01-26 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2026-02-16 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2026-23760 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |