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CVE Vulnerability Details :
CVE-2025-52691
PUBLISHED
More InfoOfficial Page
Assigner-CSA
Assigner Org ID-5f57b9bf-260d-4433-bf07-b6a79e9bb7d4
View Known Exploited Vulnerability (KEV) details
Published At-29 Dec, 2025 | 02:15
Updated At-27 Jan, 2026 | 13:34
Rejected At-
▼CVE Numbering Authority (CNA)
Upload Arbitrary Files

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.

Affected Products
Vendor
SmarterTools
Product
SmarterMail
Default Status
unknown
Versions
Affected
  • SmarterMail versions Build 9406 and earlier
Metrics
VersionBase scoreBase severityVector
3.110.0CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Version: 3.1
Base score: 10.0
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Users and administrators of affected product versions are advised to update to SmarterMail version Build 9413 immediately.

Configurations
Workarounds
Exploits
Credits
finder
Chua Meng Han
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2025-124/
N/A
Hyperlink: https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2025-124/
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-434CWE-434 Unrestricted Upload of File with Dangerous Type
Type: CWE
CWE ID: CWE-434
Description: CWE-434 Unrestricted Upload of File with Dangerous Type
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
kev
dateAdded:
2026-01-26
reference:
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-52691
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/watchtowrlabs/watchTowr-vs-SmarterMail-CVE-2025-52691?ref=labs.watchtowr.com
exploit
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-52691
government-resource
Hyperlink: https://github.com/watchtowrlabs/watchTowr-vs-SmarterMail-CVE-2025-52691?ref=labs.watchtowr.com
Resource:
exploit
Hyperlink: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-52691
Resource:
government-resource
Details not found