Vulnerability details
CVE-2025-52691
Actively exploited
SmarterTools SmarterMail
Upload Arbitrary Files
CVSS 3.1
10.0Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 10.0Critical | 3.1 | CVEProject cvelistV5 (CNA) (CSA) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| SmarterTools | SmarterMail | SmarterMail versions Build 9406 and earlier | CVEProject cvelistV5 (CNA) |
References and advisories
3
Kolun on Telegram @kolunsec
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Details
- Published
- 2025-12-29
- Last updated
- 2026-02-26
- State
- Published
- Assigner (CNA)
- CSA
- Kolun priority
- 90 · Critical
CISA KEV catalog
- Date added
- 2026-01-26
- Due date
- 2026-02-16
- Used in ransomware
- Yes
Exploit prediction (EPSS)
85.65%
Probability of exploitation in 30 days
99.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-434Unrestricted Upload of File with Dangerous Type