CVE-2021-42106 Privilege escalation in Trend Micro Apex One
A local attacker with low-privileged code execution capabilities can escalate privileges on Trend Micro Apex One and Worry-Free Business Security installations.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-42106?
CVE-2021-42106 is a high-severity vulnerability in Trendmicro Apex One, published on 21 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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-2021-42104, 42105 and 42107.
Weakness: CWE-269
Which versions are affected by CVE-2021-42106?
It affects 3 products.
Products include Trendmicro Apex One, Trendmicro Worry-Free Business Security, Trendmicro Worry-Free Business Security Services.
How do I fix CVE-2021-42106?
No fix has been published for CVE-2021-42106 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-42106 being exploited?
There is no known exploitation of CVE-2021-42106 in the wild and no public exploit code.
Other vulnerabilities in Trendmicro Apex One
- CVE-2020-8599 Trend Micro Apex One and OfficeScan Authentication Bypass
- CVE-2025-54948 Trend Micro Apex One OS Command Injection
- CVE-2021-36741 Trend Micro Multiple Products Improper Input Validation
- CVE-2020-8467 Trend Micro Apex One and OfficeScan Remote Code Execution
- CVE-2020-8468 Trend Micro Multiple Products Content Validation Escape
Sources
Also known as GHSA-x399-p375-pf6x.