CVE-2021-42011 Privilege escalation in Trend Micro Apex One
A local attacker with low-privileged code execution can load a DLL with escalated privileges in Trend Micro Apex One.
- 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-2021-42011?
CVE-2021-42011 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
An incorrect permission assignment vulnerability in Trend Micro Apex One and Apex One as a Service could allow a local attacker to load a DLL with escalated 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.
Weakness: CWE-276
Which versions are affected by CVE-2021-42011?
It affects 1 product.
Products include Trendmicro Apex One.
How do I fix CVE-2021-42011?
No fix has been published for CVE-2021-42011 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-42011 being exploited?
There is no known exploitation of CVE-2021-42011 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-9rm3-vhw2-wcx7.