CVEvulnerability

CVE-2021-36742

7.8 HIGH Known exploited Published 2021-07-29 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Trend Micro Multiple Products Improper Input Validation Vulnerability — Trend Micro Apex One, Apex One as a Service, and Worry-Free Business Security

Trend Micro Apex One, Apex One as a Service, and Worry-Free Business Security contain an improper input validation vulnerability that allows for privilege escalation.

Added to KEV
2021-11-03
Remediation due
2021-11-17
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Notes
https://success.trendmicro.com/dcx/s/solution/000287819?language=en_US, https://success.trendmicro.com/dcx/s/solution/000287820?language=en_US; https://nvd.nist.gov/vuln/detail/CVE-2021-36742
Status
Analyzed
Published
2021-07-29
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
4.6 MEDIUM — AV:L/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-20

Description

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.

Affected configurations

• trendmicro officescan xg • trendmicro officescan business security 10.0 • trendmicro apex one 2019 • trendmicro worry-free business security 10.0

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References