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Release Date: November 29, 2021

Trend Micro Vulnerability Identifier: CVE-2021-43772

Platform(s): Windows OS

CVSSv3 Score: 5.5: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Severity Rating: Medium

Summary

Trend Micro has released a new version of Trend Micro Security. This update resolves the Folder Shield protected folder bypass affecting the Trend Micro Security 2021 family of consumer products.

Affected version(s)

PRODUCT AFFECTED VERSION(S) PLATFORM LANGUAGE(S)
Premium Security 2021 (v17) and below Microsoft Windows English
Maximum Security 2021 (v17) and below Microsoft Windows English
Internet Security 2021 (v17) and below Microsoft Windows English
Antivirus+ Security 2021 (v17) and below Microsoft Windows English

Solution

Trend Micro has released a version to resolve this issue:

PRODUCT AFFECTED VERSION(S) PLATFORM LANGUAGE(S)
All version above 2022 (v17.7) Microsoft Windows English

Vulnerability Details

This new version resolves a vulnerability in the product that allows files inside the protected folder to be modified without any detection.

Trend Micro has received no reports nor is aware of any actual attacks against the affected products related to this vulnerability at this time.

Mitigating Factors

None identified. Customers are advised to ensure they always have the latest version of the program.

Acknowledgment

Trend Micro would like to thank Amir Ahmadi (@KingAmir) for responsibly disclosing this issue and working with Trend Micro to help protect our customers.

Additional Assistance

Customers who have questions are encouraged to contact Trend Micro technical support for further assistance.

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