Vulnerability Intelligence Report
Upload Arbitrary Files
CVE-2025-52691
Successful exploitation of the vulnerability could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code execution.
CISA KEV
Nuclei Template
SSVC: Active Exploitation
Automatable
CVSS Base Score
10.0
CRITICAL
Exploitability:3.9
Impact Score:6.1
EPSS Probability:85.46%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-434 ↗CWE-434 Unrestricted Upload of File with Dangerous Type
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| SmarterTools | SmarterMail | SmarterMail versions Build 9406 and earlier (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
85.457%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Cyber Security Agency of Singapore · CERT · Singapore |
| Reserved | 2025-06-19T06:04:41 |
| Published | 2025-12-29T02:15:58 |
| Patch Date | 2025-12-29 |
| Last Updated | 2026-02-26T16:07:23 |
Community Chatter & Buzz