Home/CVE/Trend Micro Security 2021 v17.0 (Consumer) contains a vulnerability that allows files inside the protected folder to be
CVE

CVE-2021-43772

Trend Micro Security 2021 v17.0 (Consumer) contains a vulnerability that allows files inside the protected folder to be

Trend Micro Security 2021 v17.0 (Consumer) contains a vulnerability that allows files inside the protected folder to be modified without any detection.

MEDIUM · CVSS 5.5 EPSS 0.00083
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules7 YARA rules0
⬡

Weakness Classification

CWE-552Files or Directories Accessible to External Parties
▤

Affected Products & Versions

4
trendmicro antivirus\+ security<= 2021
trendmicro internet security<= 2021
trendmicro maximum security<= 2021
trendmicro premium security<= 2021
◈

Sigma Hunt Rules

7
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productcriticalHackTool - Windows Credential Editor (WCE) Execution
productcriticalWindows Credential Editor Registry
producthighOpenCanary - MSSQL Login Attempt Via Windows Authentication
producthighWindows LAPS Credential Dump From Entra ID
producthighTamper Windows Defender - PSClassic
producthighTamper Windows Defender Remove-MpPreference - ScriptBlockLogging
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · security@trendmicro.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD03 Dec 2021 · 11:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://helpcenter.trendmicro.com/en-us/article/tmka-10855Vendor Advisory
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