CVE-2021-23139 Null dereference in Trend Micro Apex One
An attacker can crash the CGI program in Trend Micro Apex One and Worry-Free Business Security via a null pointer vulnerability.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-23139?
CVE-2021-23139 is a high-severity vulnerability in Trendmicro Apex One, published on 21 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A null pointer vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1 could allow an attacker to crash the CGI program on affected installations.
Weakness: CWE-476
Which versions are affected by CVE-2021-23139?
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-2021-23139?
No fix has been published for CVE-2021-23139 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-23139 being exploited?
There is no known exploitation of CVE-2021-23139 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-w2wf-2p6x-gv2x.