CVE-2021-42104
mediumpriority · track · 31EPSS 0.004 · 32 %ileEUUSEPSS · scored 2026-10-27
Unnecessary privilege vulnerabilities in Trend Micro Apex One, Apex One as a Service, Worry-Free Business Security 10.0 SP1 and Worry-Free Business Security Services could allow a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. This vulnerability is similar to but not identical to CVE-2021-42105, 42106 and 42107.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.6–7.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (5)
Products and version ranges known to be affected.
- trendmicro worry-free business security= 10.0nvdUScpe:2.3:a:trendmicro:worry-free_business_security:*:*:*:*:*:*:*:*
- trendmicro worry-free business security servicesall versionsnvdUScpe:2.3:a:trendmicro:worry-free_business_security_services:*:*:*:*:*:*:*:*
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (12)
External citations — patches, advisories, analysis.
- http://success.trendmicro.com/solution/000289230。Patchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-42104cnnvd
- https://success.trendmicro.com/solution/000289229cnnvd
- https://success.trendmicro.com/solution/000289230cnnvd
- https://www.cybersecurity-help.cz/vdb/SB2021101415cnnvd
- https://www.zerodayinitiative.com/advisories/ZDI-21-1216/cnnvd
- https://success.trendmicro.com/solution/000289229enisa_euvd
- https://success.trendmicro.com/solution/000289230enisa_euvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan