CRITICAL CISA KEV Actively Exploited

CVE-2026-23760

Q: What is CVE-2026-23760?

SmarterTools SmarterMail versions prior to build 9511 contain an authentication bypass 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. An unauthenticated attacker can supply a target administrator username and a new password to reset the account, resulting in full administrative compromise of the SmarterMail instance. NOTE: SmarterMail sys

Q: Is CVE-2026-23760 actively exploited?

Yes. CVE-2026-23760 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2/16/2026.

Q: What is the CVSS score for CVE-2026-23760?

CVE-2026-23760 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string 3.1.

SmarterTools SmarterMail < Build 9511 Authentication Bypass via Password Reset API

CVSS v3

9.8

CRITICAL

EPSS Score

79.9 %

exploit probability

CISA KEV

Yes

known exploited

Exploitation

active

SSVC status

Description

SmarterTools SmarterMail versions prior to build 9511 contain an authentication bypass 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. An unauthenticated attacker can supply a target administrator username and a new password to reset the account, resulting in full administrative compromise of the SmarterMail instance. NOTE: SmarterMail sys

CISA Known Exploited Vulnerability

Date Added: 2026-01-26
Patch Due Date: 2026-02-16
Ransomware Use: Unknown

Technical details

CVSS v3 Vector: 3.1
Published: 2026-01-22
Last Modified: 2026-01-27

Frequently asked questions

What is CVE-2026-23760?

Is CVE-2026-23760 actively exploited?

Yes. CVE-2026-23760 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2/16/2026.

What is the CVSS score for CVE-2026-23760?

CVE-2026-23760 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string 3.1.

Is CVE-2026-23760 affecting your environment?

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