{"cve":"CVE-2020-24557","nvd":{"published":"2020-09-01T19:15:11.870","modified":"2026-06-17T03:05:45.430","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"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"],"products":["trendmicro:apex_one","trendmicro:worry-free_business_security"],"source":"nvd","synced_at":"2026-10-19T21:09:20.498348299+00:00"},"epss":{"cve":"CVE-2020-24557","score":0.02666,"percentile":0.85732,"date":"2026-11-01"},"kev":{"cve":"CVE-2020-24557","date_added":"2021-11-03","due_date":"2022-05-03","vendor":"Trend Micro","product":"Apex One, OfficeScan, and Worry-Free Business Security","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}