CVE-2021-44023

Name: CVE-2021-44023
Creator: NVD / NIST
Published: 2021-12-16T03:15:10.073+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2021-44023 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. A link following denial-of-service (DoS) vulnerability in the Trend Micro Security (Consumer) 2021 familiy of products could allow an attacker to abuse the PC Health Checkup feature of the product to create symlinks that would allow modification of files which could lead to a denial-of-service.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

A link following denial-of-service (DoS) vulnerability in the Trend Micro Security (Consumer) 2021 familiy of products could allow an attacker to abuse the PC Health Checkup feature of the product to create symlinks that would allow modification of files which could lead to a denial-of-service.

Metrics

CVSS 3.1

7.1/10

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

EPSS Probability

0.41%

32.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-59

Affected Software

Vendor	Product	Versions
Trendmicro	Antivirus\+ Security 2021	<= 17.0
Trendmicro	Internet Security 2021	<= 17.0
Trendmicro	Maximum Security 2021	<= 17.0
Trendmicro	Premium Security 2021	<= 17.0

References

https://helpcenter.trendmicro.com/en-us/article/tmka-10867Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1536/Third Party Advisory, VDB Entry
https://helpcenter.trendmicro.com/en-us/article/tmka-10867Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1536/Third Party Advisory, VDB Entry

Timeline

Published: Dec 16, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-44023?

How severe is CVE-2021-44023?

CVE-2021-44023 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2021-44023?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-44023?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST