CVE-2025-52691 KEV
10.0
CRITICAL · CVSS 3.1 · EPSS 85.7% (pctl 100)
Patch first
On CISA KEV — known exploited in the wild, due 2026-02-16.
Description
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.
Scoring
| CVSS | 10.0 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 85.66% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-434 |
| On CISA KEV | yes — remediate by 2026-02-16 |
| Public exploit | none known |
| Published | 2025-12-29 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | SmarterTools SmarterMail Unrestricted Upload of File with Dangerous Type Vulnerability |
|---|---|
| Added | 2026-01-26 |
| Due | 2026-02-16 |
| Vendor / product | SmarterTools / SmarterMail |
| Ransomware use | known |
Affected (1)
| Vendor | Product |
|---|---|
| smartertools | smartermail |
References
→ the Explorer · watch your stack · NVD