Exploited. On CISA's list since 2023-09-21.
Trend Micro Apex One and Worry-Free Business Security Remote Code Execution Vulnerability
CVE-2023-41179 · Trend Micro Apex One and Worry-Free Business Security · Published 2023-09-19
How bad would it be?
7.2 out of 10
CVSS rates it high.
How likely is it to be used?
4.2%
Estimated chance of exploitation in the next 30 days, higher than 90% of all scored flaws (EPSS, 2026-10-29).
Is it already being used?
Yes
CISA has seen it exploited in real attacks. For US government agencies the fix is deadline passed 1114 days ago (2023-10-12).
What CISA says to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Trend Micro Apex One and Worry-Free Business Security contain an unspecified vulnerability in the third-party anti-virus uninstaller that could allow an attacker to manipulate the module to conduct remote code execution. An attacker must first obtain administrative console access on the target system in order to exploit this vulnerability.
What the flaw is
A vulnerability in the 3rd party AV uninstaller module contained in Trend Micro Apex One (on-prem and SaaS), Worry-Free Business Security and Worry-Free Business Security Services could allow an attacker to manipulate the module to execute arbitrary commands on an affected installation. Note that an attacker must first obtain administrative console access on the target system in order to exploit this vulnerability.
From the NVD.
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CWE-94 · NVD record: 134c704f-9b21-4f2e-91b3-4a467353bcc0; NVD record: nvd@nist.gov. We have not selected a close learning match for this label.
CWE is a catalogue of weakness types. Labels come from the sources shown and can differ or change. Resource matches reviewed 16 October 2026.
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Exploited flaws from CISA's KEV catalogue. Chance of exploitation from EPSS by FIRST. Descriptions and scores from the NVD. This product uses the NVD API but is not endorsed or certified by the NVD.