Trend Micro Apex One and Worry-Free Business Security Remote Code Execution Vulnerability
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…
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 2 / 5
- KEV catalog (CISA)21 Sept 2023
- Exploited in EUVD (ENISA)21 Sept 2023
- Used by ransomwareno
- EPSS above 10 %4.2%
- No account, over the networkno
What to do
Fix
Apply the vendor’s fix as soon as it is available.
CISA guidance: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Description ENISA EUVD
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.
Affected products
- SaaS <14.0.12637
- SaaS <6.7.3578 / 14.3.1105
- 10.0 SP1 <10.0 SP1 Build 2495
- 2019 (14.0) <14.0.0.12380
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
-
Published
-
Exploitation reported (ENISA)
-
Added to the KEV catalog
-
CISA remediation due date
References
Other exploited vulnerabilities from the same vendor
- CVE-2026-34926Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability4.9 · Actively exploited
- CVE-2025-54948Trend Micro Apex One OS Command Injection Vulnerability6.9 · Background exploitation
- CVE-2022-40139Trend Micro Apex One and Apex One as a Service Improper Validation Vulnerability4.2 · Background exploitation
- CVE-2022-26871Trend Micro Apex Central Arbitrary File Upload Vulnerability6.9 · Background exploitation
- CVE-2021-36742Trend Micro Multiple Products Improper Input Validation Vulnerability4.4 · Background exploitation
- CVE-2021-36741Trend Micro Multiple Products Improper Input Validation Vulnerability4.9 · Background exploitation