CVE-2026-23760

CVE Enrichment

CVSS: 9.3 CRITICAL
EPSS: 96.54%
EPSS Percentile: 99.88%
CISA KEV: YES — Known Exploited Vulnerability

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 system administrator privileges grant the ability to execute operating system commands via built-in management functionality, effectively providing administrative (SYSTEM or root) access on the underlying host.

Technical Details

CVSS Version: 4.0
CNA / NVD Source: disclosure@vulncheck.com
Published: 22-Jan-2026 22:16
Last Modified: 04-Aug-2026 12:16
EPSS Date: 2026-10-13
CWE: CWE-288

CVSS Vector


            CVSS:4.0                            AV:N /
                            AC:L /
                            AT:N /
                            PR:N /
                            UI:N /
                            VC:H /
                            VI:H /
                            VA:H /
                            SC:N /
                            SI:N /
                            SA:N /
                            E:X /
                            CR:X /
                            IR:X /
                            AR:X /
                            MAV:X /
                            MAC:X /
                            MAT:X /
                            MPR:X /
                            MUI:X /
                            MVC:X /
                            MVI:X /
                            MVA:X /
                            MSC:X /
                            MSI:X /
                            MSA:X /
                            S:X /
                            AU:X /
                            R:X /
                            V:X /
                            RE:X /
                            U:X

CISA KEV Details

Date Added: 2026-01-26
Remediation Due: 2026-02-16
Known Ransomware Campaign Use: Known
Required Action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes: https://www.smartertools.com/smartermail/release-notes/current ; https://nvd.nist.gov/vuln/detail/CVE-2026-23760

Affected Products / Versions

smartertools / smartermail
Version / affected range: * · before (exclusive) 100.0.9511
cpe:2.3:a:smartertools:smartermail:*:*:*:*:*:*:*:*

References

Last enrichment sync: 14-Oct-2026 09:15
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

CVE-2026-23760 CYFIRMA Report Maps Cyber Threats Facing India and SAARC Telecom Sector

CVE (14)

Malware (3)

Threat Actors (33)

MITRE ATT&CK (13)

Vendors (15)

Products (13)

Tools (1)

Industries (14)

Countries (10)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.