CVE-2021-45440 Privilege escalation in Trend Micro Apex One
A local attacker with low-privileged code execution can abuse impersonation privileges to elevate to higher privileges in Trend Micro security products.
- 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-2021-45440?
CVE-2021-45440 is a high-severity vulnerability in Trendmicro Apex One, published on 8 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A unnecessary privilege vulnerability in Trend Micro Apex One and Trend Micro Worry-Free Business Security 10.0 SP1 (on-prem versions only) could allow a local attacker to abuse an impersonation privilege and elevate to a higher level of privileges. 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-269
Which versions are affected by CVE-2021-45440?
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-2021-45440?
No fix has been published for CVE-2021-45440 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-45440 being exploited?
There is no known exploitation of CVE-2021-45440 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-4wp6-5frp-x2fq.