CVE-2025-53378

Published Jul 10, 2025 CVSS 3.1 · 7.6 High EPSS < 1% KEV · Not listed
Description
A missing authentication vulnerability in Trend Micro Worry-Free Business Security Services (WFBSS) agent could have allowed an unauthenticated attacker to remotely take control of the agent on affected installations.

Also note: this vulnerability only affected the SaaS client version of WFBSS only, meaning the on-premise version of Worry-Free Business Security was not affected, and this issue was addressed in a WFBSS monthly maintenance update. Therefore no other customer action is required to mitigate if the WFBSS agents are on the regular SaaS maintenance deployment schedule and this disclosure is for informational purposes only.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-21042 A missing authentication vulnerability in Trend Micro Worry-Free Business Security Services (WFBSS) agent could have allowed an unauthenticated attacker to remotely take control of the agent on affected installations. Also note: this vulnerability only affected the SaaS client version of WFBSS only, meaning the on-premise version of Worry-Free Business Security was not affected, and this issue was addressed in a WFBSS monthly maintenance update. Therefore no other customer action is required to mitigate if the WFBSS agents are on the regular SaaS maintenance deployment schedule and this disclosure is for informational purposes only.
History
Type Values Removed Values Added
First Time appeared Microsoft
Microsoft windows
Trendmicro worry-free Business Security Services
CPEs cpe:2.3:a:trendmicro:worry-free_business_security_services:*:*:*:*:saas:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows
Trendmicro worry-free Business Security Services
Type Values Removed Values Added
Metrics epss

{'score': 0.00067}

epss

{'score': 0.00072}

Type Values Removed Values Added
Metrics epss

{'score': 0.00067}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A missing authentication vulnerability in Trend Micro Worry-Free Business Security Services (WFBSS) agent could have allowed an unauthenticated attacker to remotely take control of the agent on affected installations. Also note: this vulnerability only affected the SaaS client version of WFBSS only, meaning the on-premise version of Worry-Free Business Security was not affected, and this issue was addressed in a WFBSS monthly maintenance update. Therefore no other customer action is required to mitigate if the WFBSS agents are on the regular SaaS maintenance deployment schedule and this disclosure is for informational purposes only.
First Time appeared Trendmicro
Trendmicro wfbs Saas
Weaknesses CWE-306
CPEs cpe:2.3:a:trendmicro:wfbs_saas:20240325:ga:*:*:*:*:*:*
Vendors & Products Trendmicro
Trendmicro wfbs Saas
References
Metrics cvssV3_1

{'score': 7.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
trendmicro
Published
Updated
Jul 10, 2025, 7:06 PM
Reserved
Jun 27, 2025, 2:39 PM
Status
Analyzed
Published
Jul 10, 2025, 7:15 PM
Modified
Jun 17, 2026, 9:38 AM