CVE-2020-24557 KEV
7.8
HIGH · CVSS 3.1 · EPSS 2.7% (pctl 85)
Patch first
On CISA KEV — known exploited in the wild, due 2022-05-03.
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.
Scoring
| CVSS | 7.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.67% — more likely to be exploited than 85% of all CVEs |
| On CISA KEV | yes — remediate by 2022-05-03 |
| Public exploit | none known |
| Published | 2020-09-01 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Trend Micro Multiple Products Improper Access Control Vulnerability |
|---|---|
| Added | 2021-11-03 |
| Due | 2022-05-03 |
| Vendor / product | Trend Micro / Apex One, OfficeScan, and Worry-Free Business Security |
| Ransomware use | none reported |
Affected (3)
| Vendor | Product |
|---|---|
| microsoft | windows |
| trendmicro | apex one |
| trendmicro | worry-free business security |
References
- https://success.trendmicro.com/solution/000263632
- https://success.trendmicro.com/solution/000267260
- https://www.zerodayinitiative.com/advisories/ZDI-20-1094/
- https://success.trendmicro.com/solution/000263632
- https://success.trendmicro.com/solution/000267260
- https://www.zerodayinitiative.com/advisories/ZDI-20-1094/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-24557
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