CISA KEV catalog
Confirmed active exploitation.
Listed in CISA's catalog of Known Exploited Vulnerabilities: attackers are using it in real attacks. Patch it with priority.
- Name
- Trend Micro Multiple Products Improper Access Control Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
Description
A vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1 on Microsoft Windows may allow an attacker to manipulate a particular product folder to disable the security temporarily, abuse a specific Windows function and attain privilege escalation. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. Please note that version 1909 (OS Build 18363.719) of Microsoft Windows 10 mitigates hard links, but previous versions are affected.
Affected products
trendmicro: apex one; trendmicro: worry-free business security; microsoft: windows
References7
- success.trendmicro.com/solution/000263632 Vendor Advisory
- success.trendmicro.com/solution/000267260 Vendor Advisory
- success.trendmicro.com/solution/000263632 Vendor Advisory
- success.trendmicro.com/solution/000267260 Vendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-20-1094/ Third Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-20-1094/ Third Party AdvisoryVDB Entry
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=… US Government Resource
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 3% percentile: 86 · as of 2 November 2026