CVE-2021-36742highunder attackCWE-20

CVE-2021-36742: high-severity vulnerability in Trend Micro Apex One

Published · Updated

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

51Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA.

ssvc Actcvss 7.8epss 1.5%
from disclosure to weapon
Published on NVDJul 29
CISA KEV+97d
Action required by CISAfederal deadline: 2021-11-17

Apply updates per vendor instructions.

In short

A flaw in how Trend Micro security software validates user input allows someone with basic access to a computer to gain administrator-level control. An attacker must already have the ability to run code on the system to exploit this.

Technical detail

The vulnerability exists in input validation routines within Trend Micro Apex One, Apex One as a Service, OfficeScan XG, and Worry-Free Business Security 10.0 SP1, allowing privilege escalation from low-privileged user context to system or administrator level. Attack vector is local; pre-condition requires prior code execution capability on the target system. Impact includes complete system compromise through elevated privileges.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H