Trend Micro Apex One (2019), OfficeScan XG and Worry-Free Business Security (9.0, 9.5, 10.0) agents are affected by a content validation escape vulnerability which could allow an attacker to manipulate certain agent client components. An attempted attack requires user authentication.

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.

A link following vulnerability in the scanning function of Trend Micro Apex One and Worry-Free Business Security agents could allow a local attacker to escalate privileges on affected installations. The resolution for this issue has been deployed automatically via ActiveUpdate to customers in an updated Spyware pattern. Customers who are up-to-date on detection patterns are not required to take any additional steps to mitigate this issue.

A security link following local privilege escalation vulnerability in Trend Micro Apex One, Trend Micro Apex One as a Service, Trend Micro Worry-Free Business Security 10.0 SP1 and Trend Micro Worry-Free Business Security Services agents could allow a local attacker to create a mount point and leverage this for arbitrary folder deletion, leading to escalated 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.

A security link following local privilege escalation vulnerability in Trend Micro Apex One, Trend Micro Apex One as a Service, Trend Micro Worry-Free Business Security 10.0 SP1 and Trend Micro Worry-Free Business Security Services agents could allow a local attacker to create an writable folder in an arbitrary location and escalate privileges 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.

An security agent resource exhaustion denial-of-service vulnerability in Trend Micro Apex One, Trend Micro Apex One as a Service, Trend Micro Worry-Free Business Security 10.0 SP1 and Trend Micro Worry-Free Business Security Services agents could allow an attacker to flood a temporary log location and consume all disk space on affected installations.

A security out-of-bounds read information disclosure vulnerability in Trend Micro Worry-Free Business Security Server could allow a local attacker to send garbage data to a specific named pipe and crash the server. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

A link following denial-of-service vulnerability in Trend Micro Worry-Free Business Security (on prem only) could allow a local attacker to overwrite arbitrary files in the context of SYSTEM. This is similar to, but not the same as CVE-2021-44024. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

A origin validation error vulnerability in Trend Micro Apex One (on-prem and SaaS) could allow a local attacker drop and manipulate a specially crafted file to issue commands over a certain pipe 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.

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.