CVE-2025-52691Upload Arbitrary Files
Explotación conocida — SmarterTools SmarterMail Unrestricted Upload of File with Dangerous Type Vulnerability
CISA confirmó el 26.01.2026 que esta vulnerabilidad se usa en ataques reales. Plazo para las agencias federales de EE. UU.: 16.02.2026.
Acción requerida: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://www.smartertools.com/smartermail/release-notes/current ; https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2025-124/ ; https://nvd.nist.gov/vuln/detail/CVE-2025-52691
Descripción
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.
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
| Fabricante | Producto | Versiones | |
|---|---|---|---|
| SmarterTools | SmarterMail | SmarterMail versions Build 9406 and earlier |
Referencias y parches
- https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2025-124/ Third Party Advisory
- https://github.com/watchtowrlabs/watchTowr-vs-SmarterMail-CVE-2025-52691?ref=labs.watchtowr.com ExploitThird Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-52691 US Government Resource
Coincidencias CPE (NVD) (1)
cpe:2.3:a:smartertools:smartermail:*:*:*:*:*:*:*:*< 100.0.9413