// For flags

CVE-2025-49217

Trend Micro Endpoint Encryption ValidateToken Deserialization of Untrusted Data Remote Code Execution Vulnerability

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

An insecure deserialization operation in the Trend Micro Endpoint Encryption PolicyServer could lead to a pre-authentication remote code execution on affected installations. Note that this vulnerability is similar to CVE-2025-49213 but is in a different method.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Trend Micro Endpoint Encryption. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the implementation of the ValidateToken method. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of SYSTEM.

*Credits: Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2025-06-03 CVE Reserved
  • 2025-06-11 CVE Published
  • 2025-06-18 CVE Updated
  • 2025-06-18 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-477: Use of Obsolete Function
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Trend Micro, Inc.
Search vendor "Trend Micro, Inc."
 Trend Micro Endpoint Encryption Policy Server
Search vendor "Trend Micro, Inc." for product "Trend Micro Endpoint Encryption Policy Server"
 >= 6.0.0.0 < 6.0.0.4013
Search vendor "Trend Micro, Inc." for product "Trend Micro Endpoint Encryption Policy Server" and version " >= 6.0.0.0 < 6.0.0.4013"
en
Affected