CVE-2020-24557
Last modified
CVE-2020-24557 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 2.64% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Trendmicro | Apex One | All versions | — |
| Trendmicro | Apex One | 2019 | — |
| Trendmicro | Worry-Free Business Security | 10.0 | Sp1 |
References
- https://success.trendmicro.com/solution/000263632Vendor Advisory
- https://success.trendmicro.com/solution/000267260Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-1094/Third Party Advisory, VDB Entry
- https://success.trendmicro.com/solution/000263632Vendor Advisory
- https://success.trendmicro.com/solution/000267260Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-1094/Third Party Advisory, VDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-24557US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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