Advisory Details

July 11th, 2025

Trend Micro Worry-Free Business Security Missing Authentication Vulnerability

ZDI-25-589
ZDI-CAN-25342

CVE ID CVE-2025-53378
CVSS SCORE 7.6, AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
AFFECTED VENDORS Trend Micro
AFFECTED PRODUCTS Worry-Free Business Security
VULNERABILITY DETAILS

This vulnerability allows remote attackers to hijack security agents on affected installations of Trend Micro Worry-Free Business Security. In most cases, user interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the agent activation API. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to remove protections or create a denial-of-service condition on the system.

ADDITIONAL DETAILS Trend Micro has issued an update to correct this vulnerability. More details can be found at:
https://success.trendmicro.com/en-US/solution/KA-0019936
DISCLOSURE TIMELINE
  • 2025-02-21 - Vulnerability reported to vendor
  • 2025-07-11 - Coordinated public release of advisory
  • 2025-07-11 - Advisory Updated
CREDIT Nicolas Caluori
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