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CVE-2020-24557: Trend Micro Multiple Products Improper Access Control Vulnerability
Trend Micro Apex One, OfficeScan, and Worry-Free Business Security · in CISA KEV since 2021-11-03
2021-11-03added to KEV
2022-05-03federal remediation due date
2.67%EPSS exploit probability (30 days) 85.1th percentile
7.8 HIGHCVSS 3.1
Unknownknown ransomware use
428days from NVD publication to KEV
What it is
Trend Micro Apex One, OfficeScan, and Worry-Free Business Security on Microsoft Windows contain an improper access control vulnerability that may allow an attacker to manipulate a particular product folder to disable the security temporarily, abuse a specific Windows function, and attain privilege escalation.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | — |
|---|---|
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2020-09-01 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2020-24557.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.