CVE-2021-36742 Trend Micro Multiple Products Improper Input Validation
A local attacker with low-privileged code execution can escalate privileges on Trend Micro endpoint security products due to improper input validation.
- Exploited in the wild
- Since 3 Nov 2021
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-36742?
CVE-2021-36742 is a high-severity vulnerability in Trendmicro Apex One, published on 29 Jul 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A improper input validation vulnerability in Trend Micro Apex One, Apex One as a Service, OfficeScan XG and Worry-Free Business Security 10.0 SP1 allows 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.
Weakness: CWE-20
Which versions are affected by CVE-2021-36742?
It affects 4 products.
Products include Trendmicro Apex One, Trendmicro Officescan, Trendmicro Officescan Business Security, Trendmicro Worry-Free Business Security.
How do I fix CVE-2021-36742?
No fix has been published for CVE-2021-36742 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 17 Nov 2021.
Is CVE-2021-36742 being exploited?
Yes. Attackers have exploited CVE-2021-36742 in the wild since at least 3 Nov 2021.
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-h3hj-ff5j-498h.